IMO, all four clubs only have one stand out striker. Arsenal have VP, Man United have Rooney, Chelsea have Drogba and we have Torres. After those four players there isn't a lot to separate us and certainly not enough for you to say Arsenal, Chelsea and United have more strength than us.
Liverpool have Torres.
Chelsea have 3 good finishers (Kalou, Drogba and Shevchenko)
Arsenal have 3 good finishers (Adebayor, Van Persie and Eduardo)
Man Utd have 3 good finishers (Rooney, Tevez and Saha)
All of those players are goal scorers.
Torres is a goal scorer, Voronin just doesn't look like he can do it and Kuyt is a really hard worker, but he's not a goal scorer. I'm a fan of Crouch though.
All I'm saying is, the 3 have goal scorers.