I'll disagree with that right now
I'm sorry but if Arsenal win the league this season there is no chance that that automatically means they've been the best team this season, not when both United and Chelsea have beaten them twice so convincingly this season (albeit maybe not so much us in the home leg)
Arsenal have been very favourable in terms of the fixture list, playing Everton away for instance on the first week of the season when they were having all kind of off the pitch problems. If Arsenal played them now like us and Chelsea have had to they'd get a draw at best
Having said all that Arsenal still have to go to Hull (who took points off of Chelsea), Birmingham (who took points off of both us and Chelsea), Wigan (who beat both Chelsea and Liverpool) Spurs & Blackburn (who both us and Chelsea also need to play) not to mention City at home so you could end up being well short come the end of the season for the above not to even matter