Everyone has different opinions on this, but I hate stoves on islands/peninsulas. You already outlined a lot of the issues with them

-poor ventilation

-splattering

-no good place for cooking equipment

-disrupts hang out space (which most islands and peninsulas become)

-any vent ruins sightlines

And I hate sinks on islands! They were ubiquitous in new Manhattan apartments when I was looking about five years ago. In an empty space they can look fairly sleek, but picture them with the dirty sponge, the dishes, the soap.. Sure, some of them included little drawers to hide those things (and there are ways to store a sponge on the side of the sink) but really... is this what you want in your living space? Not me. Give me a kitchen with a pass through to a dining room. FWIW I cook and I entertain.

I love my island stove (actually, my whole range, not just the cook top is in my island). It feels so much less constricted than when it was against a wall. I love the spaciousness. I have a ceiling dropped vent hood, and it's part of the kitchen, not an intrusion. Yes, there's a bit of a mess when I'm cooking, but it's a kitchen not a showroom. A bit of a mess doesn't bother me or my friends (if it did, they wouldn't be my friends). I have ample room on each side for ingredients and trivets, and because it's an induction range I don't worry about hot elements/flames.

We are currently in a complete kitchen redo & went through similar thinking around this before we set things in stone. Our 30" cooktop was in a island, with a peninsula behind it adjacent to our family room. I hated it because there wasn't much space either side of the cooktop. For the redo, we are putting a 36" induction cooktop with downdraft in the peninsula, and turning the island into a prep space. The peninsula will have much more space to either side of the cooktop which can be used for prep & landing areas. The peninsula has a knee wall behind it that is about 6-8" higher than the peninsula, so the cooking area is visually hidden from the family room. Functionally, it's considerably better than before. We don't grill indoors & we've not often used the downdraft we used to have in the island, so I'm not concerned about the new downdraft in the peninsula. There is also some separation between the peninsula and family room couches. It's a bit unique but I've seen a number of similar arrangements on Houzz. I also prefer not to cook up against a wall..rather be out in the open.

Sink AND stovetop or neither.

In any kitchen, only so much is POSSIBLE. For real advice, post a drawing of the kitchen with dimensions, windows, doorways ALL of it. Everything else is opinion and preference and a total waste of time.

i have center island cooktops in both residence and vacation home and love them however i dont have other furniture near by. the whole space is open and the living room is relatively far away. i dont think id like a cooktop on a peninsula that was at the very edge of the kitchen near the furniture of the 'next room'.

IMO whenever possible an outside wall is the best place for any cooking surface, there is much better ventilation there. As for island sinks I think it depends on the kitchen and how you work. We have back to back sinks in our island because my husband does the prep on one side and I cook on the other he has the fridge on his side I have the range, it works great for us. If you are in a one storey house the venting is quite good through the roof so then if you love the cooktop in the island go for it.

We are in the process of renovating and choose to put our range in the island. I don’t have a lot of linear footage on the perimeter and this arrangement allowed me to have a lot more storage while still being able to open the kitchen to the living area. I have been cooking on an island cooktop for years at my Dad’s country house and love the communal feeling of everyone gathering around to prep and cook together. We are going with a Best Cattura Downdraft for ventilation and will have a spice drawer to the left of the range. My style is very relaxed so I’ll use a ceramic crock on the counter for utensils.

I will say, however, that I would not use this arrangement in a smaller island. Our island is planned for 8.5’x4.75’ and that was really the minimum using the standard guidelines. You can get away with less depth if you aren’t having seating, but I wouldn’t make it much shorter. I have cooked on an island very little counter space around the cooktop and it was awful juggling everything and going back and forth to the perimeter.

There are so many knowledgeable people on here who can help you with your layout. I was too shy to post mine when we were planning, but I wish I would have!!

Chef friends love having their range in the island because they can cook and socialize at the same time. They also have proper hoods (6" beyond range on all sides, significant catchment area, properly sized blowers) and MUA to deal with heat, odors and grease.

We considered doing the same in our kitchen but decided against it mostly for the reasons mentioned in posts above. We will have a prep sink in the island though. We have also enclosed our kitchen/breakfast a bit more than is typical with today's open floorplans, partially to help contain cooking odors.

Agree w/ above, post your plans and people will have a clearer idea.

This is the current (very rough) proposal, which involves relocating the existing window to the right of where it is currently to get the stove along the wall where the sink is now. The new larger window will also serve as a pass-through to the screen patio on the back of the house. I'm still debating whether the peninsula will be flat or bi-livel with a higher bartop. Behind the barstools is the living room/den. There is a walkway between that and the sofas, but it is not a wide expanse.

Proposed floor plan, which shows bi-level peninsula. Like I said, we haven't decided. Also, countertop could be made deeper on the bartop side.