Super Mario 3 vs Super Mario World

[Vectorferret]

Super Mario 3. World is good, but the small number of levels and overall low difficulty once you get the physics down (why must Nintendo change the physics in every Mario game?) lead me to like Mario 3 more. World has longer levels than 3, but 3's levels are based around a different gameplay element in every level (until the super impossible levels of World 7's middle and the controller snapping nightmare of 8-1) where as World is more uniform platforming. Yoshi is almost awesome enough to put World over but I'm going to have to go with 3.