Ok, sorry I'm replying at the end of the weekend e.e - Here's my review so far; Tomb Raider is an awesome game, you can have alot of fun with it and increase the play time if you play it on hard (I started it on easy and dropped the difficulty to easy, so that's why I got through so fast. It has a good story and keeps you on the brink of pissing yourself throughout, I won't give any spoilers though :3. Problems I have is with the environment, the game is linear and there is 0 room for free roam, except for a couple optional tombs, which is just one puzzle that gets you something like 1200 xp, not really worth it, since you need alot of late game items to complete most of these tombs. Fun game, if you can rent it or whatever go for it, if you can get 2 out of the 3 this should be one. Hitman: haven't actually played this one but I've played most of the series; From what I've seen from trailers and gameplay videos, its pretty decent, If you're into that whole espionage thing then you'll probably have some fun with it since you can kill in indirect ways this time around poison, and traps and so forth (I liked that about the first farcry, the ability to set up traps and lure enemies to their deaths), this hitman is taking a new approach and is looking good, if it's a choice between it and tomb raider, I'd go for tomb raider though.
On to Crysis (first Crysis Game I've played, I'm not big on SiFi games, I'm more into adventure and fantasy stuff, save for Halo which is awesome), I just started it today but I was busy with laundry and cooking and stuff, so I only made it through the tutorial and mission 1.Th graphics are great, it looks great, but I haven't seen anything that I haven't in other fps games, I've played Ghost Recon Future Soldier recently so the interface is similar and you can do the marking targets thing in Farcry 3. I prefer the cloak in GRFT since its not energy dependent like it is in Crysis. One very cool thing though is that you pick up different weapons with different attachments (similar to MW3, where you could get AK47's with different sight attachments) and you can toggle different attachments according to your play style and current situation. I can't say much about the environment since the first mission is a prison break and you naturally would have restricted movements, but Cry Engine 3 promises these huge spectacular environments so we'll have to see. Oh yeah, and the stealth is awful; maybe i'm the one that sucks at it, but I usually play stealthy over going full retar... I mean juggernaut mode, but this game forces you to, so far you can't really kill more than 2 or 3 enemies before getting noticed, and there's no way to move bodies (YET - not sure if you can do it later on, according to this thing I was reading, apparently your suit is a metroid rip-off and gets upgraded as you go along).
Final verdict, Go with Tomb Raider, simply because it's different; if you've played other Hitman or FPS games (especially Ghost Recon) then you're not in for much; Tomb Raider will keep you on the edge of your seat til the very end; its after the end of the game that it fails (oh and extremely easy puzzles, maybe because the horrible graphics and bad camera angles of the first tomb raider games for ps1 made it so goddamn hard to get anything done, and the fact that I was about 10yo back then; or maybe because I was playing Twilight Princess simultaneously - but puzzles, if you can call them that, are unbearably easy and straight forward), combat is hard, but not DMC hard, just gets annoying if you're impatient like me and just want to run through the story, you don't need med packs to heal, you regenerate health if you don't die (but no health bar, your screen just sort of gets red and dirty). Go for Tomb Raider, Crysis 3 is good so far, just nothing I haven't seen in some other game, Hitman is good if you haven't played any other Hitman games before.
A last note is that the Crysis 3 muliplayer, is more satisfying than the Tomb Raider multiplayer, but that's just my opinion. If you can get two, go for Crysis 3 and Tomb Raider. Whereas Tomb Raider is a standalone story though and a prequel to everything, so you don't get lost in a story you don't understand, Crysis 3 picks up where the 2 previous games left off, so unless you've played the previous Crysis games you'll end up in the same hole as me. Anyway I'mma stop talking now.