Which phone should I use?

OK so i have a samsung alias 2, but I absolutely hate it. So I'm using an old back up enV but it keeps turning off when I'm texting on the QWERTY keyboard. I also have a brand new razr that's never been used I could use as a back up. I just do a month to month contract and I'm kinda stingy about getting a Smartphone as I won't use the features. But my friend offered to sell his Droid 2 to me for 20 bucks! So now I'm thinking about buying it lol. we also have a pocket pc or whatever. Idk which to use or what lol