Re: Hopefully a non-taxing question :-)
It's a matter of personal choice..
Renting in geneva will generally be a lot more expensive compared to renting in france and commuting. However, the reason it's more expensive is also because it's - generally- a lot *nicer* too. If you had a large family, were looking for a big house etc perhaps commuting made more sense, but if you are single, looking for a studio for example, it's perhaps not worth the hassle, having to venture into another country after a night out. Also note if you rent in france you then pay tax on your salary in France too, which is also higher than Switzerland. Plus you'll most likely need transport eg car, so also no drinking in Gva possible. Visa advantages are not an issue, even in Fr you'd need to get some documentation to prove u are not a tourist, eg for opening bank accounts and the like.