Indeed. I don't see why people chronically feel the need to go OTT with Theo. He is what he is, a wide poacher, a specialist, who has very good off the ball movement and is a decent but erratic finisher.
Welbeck is a worse finisher, and his movement is not as good (not saying Welbeck's movement isn't good/decent) or he'd score more goals, despite being a poor finisher.
It's too bad Walcott basically gave up on himself as a centre forward because I think he's a useful option to have, and would be in this system, in front of Alexis and Özil, as a CF, in certain games. That is Curt, @Arsenal4thetreble has stumbled on some truth here.
This holding the ball up crap also has to be the most pointless discussion when it comes to CFs. We're talking about extremely marginal benefits when it comes to Welbeck's superior ability to 'hold the ball up' versus Theo's null ability in that extremely marginal phase of the game.
I like Welbeck but the endless goodwill toward him vs. the endless bad will toward Theo is strange. Theo is the more effective player, in reality. Welbeck has some very interesting tools (one of our few players that knows how to press from the front, very nice athletic ability/presence), but as time goes on it becomes clearer that he's just not very good. I thought, like Wenger, that he had more goals/finishing in him if given some confidence and a chance, but I'm not sure that's a very realistic thought any more.
That is a front 3 I really don't want to see.