We have a 30" RNB range, a 24" Miele CSO and a 24" Miele SpeedOven. It really hits the sweet spot. This is an incredibly functional kitchen. I am not sure I really would want to change anything. I have cooked a multi-course lunch for 100 people in here no problem.

But if you're dead set on a bigger range, then get the rangetop and a 30" wall oven. It's going to eat up a lot of the space for your uppers and you'll need to upsize the make-up-air system. But at least you get to keep a lot of valuable space for lowers.

I voted for #3 by accident, I meant to vote for #2.

Having had both the 36" range top and the 48" range with griddle, I much preferred the 36" range top. I loved my BS 36" range top. It's large enough to do every thing that the basic household needs and flexes up to handle holiday cooking.

When you go up to the 48" arrangement, the cost of the ventilation becomes an issue. I think the 36" is the sweet spot. Bigger is not necessarily better. I'd rather spend my money elsewhere than on the expensive extra 12" of cooking surface.

I love the combination of double ovens with a range top. Should any of the elements go bad, and one of them will someday, you don't have to scrap the entire array. You have the option of a speed oven with microwave, too.

I've had all of these combinations. I think the 36" range top/separate oven stack is a winner.

Thank you all for your feedback.