Generally, prefer to play casually, without worrying if a deck is "tourney leagal". I prefer large free for all games, however, I have had the hankerin' (I am in Texas, I can use that word) for a 3 on 3 Generals game. With the limited number of players in my area (read as none, since the only one that played just moved away), I was pretty much stuck to the duel.
As for the deck, I generally go for some kind of theme (ie: Tribal or recursion, etc...). Of course I always have to try and "wow" a new opponent with my Enchantment Deck (See the article I wrote a long time ago for the deck list).
Is this what you were asking for, or did I go way too far overboard again?