There's more alcohol from one beer that in one shot.. and I know I can put down 10+ beers.
Durrr, drinking 10 beers over (I will have to assume) a long amount of time, is entirely different then downing 10 shots of anything.
Of course it all depends on how fast one is drinking the shots... or beer.
Personally I'de rather 'down' shots, over beer, beer foams far too much.