My only issue is that this series is ridiculously grindy. SRW has pacing as well and a story. The only thing that keeps me coming is the Gundams, SRW has it beat in all the other important fields.
Yeah SRW is actually a game, G Generation always comes off as more of a sandboxy robot murder simulator to me ever since Portable (except for Spirits). If you want some G Generations with some actual structure then you should mostly stick to NEO and the handheld series.
Well, SRW doesn't have to deal with a ridiculously large mecha roster and typically characters only stay in 1 mecha. So it lets them dedicate more time and resources on making those units neat. As well as a different set of engines and art styles.
XBox Live: Tinklyknight (Not Gold at the moment due to various reasons)