Poker oder Black Jack

What should I play? Both are nice Card Games and I have to play against other people or the dealer, and in both I need a great ammount of knowledge and the right strategy. When I go for Black Jack and really spend some time with it, I will eventually have all the techniques within 6 months, but in Poker you will never master the game. So more interesting for me is playing Poker, becouse I can beat real people and compete with them on the highest levels.  And where do I play ? In the last months I was playing a lot in Titan Poker becouse of the nice software and the good offer of tournaments. But I am chancing my rooms after my feeling.