Originally Posted by BillSeurer 
RF:G is like a guilty pleasure. The game isn't really that good but knocking down entire buildings with a sledge hammer is strangely enjoyable.
That is SO true … sometimes I would forget what I was supposed to be doing because I got bent on rampant hammer-time!
I liked RF1, but it was just an average game that I think got over-hyped due to GeoMod. RF2 was pretty lousy - like a game that was ~3 hours long, then the devs realized and said 'oh crap' and tacked on a generic 2 hour endgame.
Guerrilla was average as well, but decent fun. For $12.50 I might grab Armageddon …