Absolutely not the first way. How much space is space? You don't give dimensions so impossible to comment on that.

you only need the bare minimum for the toilet. 15" on each side.

More counter space is always better.

I updated the posting with measurements. The first version is already at a staggering 100" long, with 28" on each side of toilet, and the second one is 130" long, with only 15" on each side of the toilet.

I feel like it's one or the other. As any other formation would make the windows look strange.

I agree no purpose in having the toilet space be huge and counter always trumps toilet space .

If you don't need anymore counter space, what about having a tall linen cabinet on the wall side? Or a shallow cabinet in the middle of the vanity to break up the expanse of countertop? You can also build a knee wall on the toilet side to give some separation between the toilet and the vanity.

Classic Elegance · More Info

Caulfield Master Bathroom · More Info

Are there two questions here-

1. If the window should be up against the wall?
2. How much space around the toilet?

I like the window away from the edge of the wall but it looks like in the second picture the windows are different sizes? Is that correct?

Are you changing the position of the wall in the house?
Or moving the window- how does that impact the look of the outside of the house?

I like having more than the bare minimum space around the toilet. If you can figure out how to get the window away from the edge and offer at least 18"-20" around the toilet, that would be my preference.