first of all i dont know who told u theres 2500 countries..theres nearly 150, ur off by a couple dozen planets.
westwood and blizzard rts games are completey different, i dont even see how generals can be considered blizzard-like. supreme commander is good, i dont like it though, it seems like a age of empires in the future game. and age of empire sucks bad.
ive played all the westwood games, all the blizzard games, aoe, sc, and i have to say that warcraft3 is by far the best of rts's, then id have to give a tie between ra2/starcraft. generals blew it with the super weapons and unbalanced units.