Jurassic Park or Iron Maiden. Best games in modern history in my opinion for bang for the buck with deep rule sets and fun gameplay. If you have the extra coin get a JJP POTC. Too pricey for me but an incredible game.
I own TSPP and it's fantastic and deep but starts to feel like a chore to play after awhile. It seldom gets played in my house.
AFM and TNA are both amazing games too but their rule sets are so generic and there doesnt feel to be enough bang for the buck to grab my money.