Unlurking just to say that Michonne doesn't need to be told to her face in the show that she's attractive for her to look it, she already is!
Also, I got huge UST vibes from Daryl and Michonne at the beginning of Season 4, and he didn't need to comment about her looks for me, as a first-time viewer of the show, to feel that way. If I didn't have Wikipedia on hand I'd have thought they were already an established couple, with the way he kept on telegraphing how she needed to stop leaving the prison to search for the Governor, and her 'he's already given me fleas' joke. It seems though that Richonne is the more popular ship in fandom though and she hasn't exchanged a line with Daryl since....I don't even remember, so I'll rest my case. :P