Be wary of gas ovens, there are different laws to obay; it needs extra room for aeration, otherwise you might risk carbon monoxide production... We had one previously in our old kitchen. I much prefer our new one: gas cooktop and electric oven (less food falling into the gaps surrounding the oven )
That's why there is so much room between my oven & benches! I hate trying to clean down there!

I only ever had electric before I moved here. My last gas oven didn't seem to bad, but this one definitely cooks faster at the front.

Other than that though, I'm not too fussed either way.