.elder scrolls
1(games played)-arena,dagerfall,redguard,morrowind,oblivion
2(why)-the game has the ultimate freedom! there is almost no way to run out of things to do in this game. as a note-i love oblivion for its combat system and graphics but as far as overall appeal morrowind is the better game due to more freedom and harder enemies.
.pokemon
1-red,yellow,crystal,gold,sapphire,ruby,emerald,firered,diamond,platinum,red mystery dungeon,snap,pinball,trading card game,*gasps for breath* and collesium
2.its the level grinders dream to be able to customize and compete with your favorite characters...so when you throw hundreds in the mix its nirvana. red is my favorite due to it being the first one i played so everything was fresh
metal gear
1.metal gear,metal gear solid,metal gear solid 2 sons of liberty,metal gear solid 3 snake eater,metal gear solid 3 subsistence,metal gear portable ops,metal gear solid peace walker,and metal gear ac!d
2. the games seemed like movies in interactive form. you could take them and put them on the silver screen and theyll be blockbusters. snake eater is my all time fave, i played mgs 4 guns of the patriots for too little time to give an informed judgement
halo
1.halo,halo2,halo3,halo reach
2i love playing these games online most of all (yet only second to socom).