We don't play a front three and if we did, would you play Bale through the centre? Because Podolski hasn't played through the centre for a long long time, probably because he is poor there. Podolski is an excellent inside left forward though, so for me it's not him and Bale, it's him or Bale. I am not convinced Bale can play as an inside forward however, and if we ever do properly switch to a 4-3-3 it may be once Bale has left the club.
Walcott vs Lennon? Well we play two banks of four at the moment and I'd have Lennon all day long. Likewise I wouldn't play Carzola centrally in a four man Premiership midfield. Wheelchair vs Dembele is a close call, but again I think they play slightly different roles. To indulge in a 4-3-3 fantasy my team would be Lloris, Sagna, Dawson, Vertonghen, Ekotto as the defensive unit. Sandro, Dembele and Wheelchair through the middle. Bale and Lennon on the flanks. Adebayor leading the line.