If you really were satisfied and in love with #1 you wouldn't feel the need to "tap" #2 a few more times.. I mean really, what if #1 finds out about #2? Then you've just lost the best thing that could've possibly happened to you.. Let's be real here, if #1 doesn't satisfy you in bed enough to keep you faithful now, what's to stop you from cheating once you make your relationship official? Personally I think you should either step up and be a man and say good bye to #2... Or choose #2 and give #1 a chance to find happiness with someone who WON'T feel the desire to cheat on her..
Maybe I'm a little biased since I'm most likely always a #1 in situations like this.. :o
I've no interest in the one with the child if she's more free spirited and more liable to stray in the relationship. So the other one gets my vote for that reason alone.