Che, while completely awesome as a name, is no good. Too much CH-CH sound. But, ummm, can I have it?
Earl is great. Nick Cave's son is Earl.
Thomas rolls soooo well, depending on how much S there is in your surname. Probly my fave.
Daniel flows quite well, but for the reason you've posted I'm reluctant to use it.
Ryan... meh. Sounds nice enough, but I'm ambivalent on it.
George, although a great name, is not high on my list. I don't like the CH and G/J sound together.

That's what I think.