If it is a daily drive, I would get a G because it is comfortable, the room space, and I always love that exhaust tone it has. One of my friend used to own a s2k, and i always have to give him a ride, just because he can't fit something in his car. Also, the s2k is loud, engine and road noise, I just can't take it everyday. If it comes to weekend/fun car, S2k. I love top down, the 9k ap1 rpm.
Look, if its done right, they both can look good. Maintenance, depends on the owners, but heard more problems for the G. When getting used s2k, check compression, saw quiet a few with messed up compressions.