Which boyfriend do I choose?

To make a LONG story really short, I have 2 guys in my life. The first was from high school but we broke up about year and a half a go right before college. He's sweet, outgoing, spontaneous and fun to be around. He doesn't have much to offer but I care deeply for him despite that. He can sometimes be a little immature though! The second I've been dating since I broke up with the first, he's stable emotionally and financially, faithful, and really is all about me. But he's a bit too controlling and we fight constantly that we are now on a break. Now the ex is back in life and wants to be with me. But I don't feel as secure with him (as in I don't trust him around other girls like I do my current boyfriend) but something about my ex just draws me in. He's been wooing me and I so caught up. All those old feeling are coming back since we didn't have a bad break up. What do I do? The story is way more detailed and complex but this is the gist of it. Help :(