I believe Richard has suffered a niggling re occurring injury. At the beginning of the season, as far as I have learned, it flared up in Germany and didn't want to risk playing the first few games (assuming he had been selected)... well, that's what I understand.
I believe Lee is the better keeper and his shot-stopping and racing-out is about as good and quick as it gets outside the Premiership. His kicking is also arguably better than Moore's.
Forget about the tired height issue - he's the same height as Shay Given and has one of the best 'leap' technique of any keeper.
Moore has done a truly awesome job, playing to his absolute max potential of late and if he was our only keeper (save for a stand-in), I'd be happy.
I think the question is experience. League One teams in general is now tactically more aware than ever have been, on the whole. I do wonder how the two keepers are compared when instructing the back-line and to do that well, takes real experience. Especially with an ever-so-slightly wobbly defence.
For that reason, Lee is a starter for me. When he's fit. And I suspect, in time, he will be. He may not be the perfect keeper, but like any player, they need a run of games, and I believe his experience, attitude and quick-thinking will eventually see him start most games. that's difficult given BFC posess such a talented keeper in Moore, but teams that go up typically have two brilliant keepers, as they do strikers...
Wait, strikers...?