If you want a currently available model, consider Panasonic 470, 570, and 780. Consensus on head-fi and on the old headwize seems to be that they are better than currently available Sony's. Of the latter, i've heard only the 925, and i prefer the Panasonic's (the Sony was painfully bright). As for ruggedness, i've never had a problem with either 470 or 780, but i don't recall ever dropping either. The Panasonic's have a far superior anti-skip system, too; I could not run with the Sony 925, but have no problem with 470 or 780 (altho the former occasionally skips with my InCase carrier, for some reason, so i don't use the InCase for running).
Sony 925 remote and resume are way superior to Panasonic, however.