If favorite game means:
1. The game that has the longest lasting value - Counter Strike (been playing for 5+ years, can't really stop playing forever)
2. Best game based on how enjoyable during the game time played - Baldur's Gate 1 (
3. Best console game - Xenogears (best story line in any RPG I've played)
4. Most memorable game - Final Fantasy II (IV in Japan, my first RPG, and the best old school RPG game ever)
5. Most addictive game over a short period - Diablo 2 (was hooked day and night, in the 2 months that it lasted)
6. Most addictive game over a long period - Everquest 1 (had the longest hours played of any game)
7. Most efforts put into a single game - Everquest 2 (graphics, voice overs, combat system, skill system, tutorial, design, etc)