Hi Lestat,
Are you familiar with pokerstove (
www.pokerstove.com) ? It's a simulation tool that allows you to calculate your equity against a range of hands. This is the viewpoint from which Victor and Glenn are saying A5s is a dog to a random hand - using this equity simulator A5s is less than 50% to win against the range of all hands. Of course you could say his range is more defined than that since he 3 bet preflop, and you might be able to construct a range that you would be >50% against on that board, but I would guess it is much easier and much more likely that any smaller range you construct would put you as a more significant dog than {all hands}.
It looks to me like you are taking a micro-economic viewpoint to this hand and they are taking a macro-economic one.
-DeathDonkey