I started to do my anims in Pivot, but now in flash, i want to decide what program is better than the other one. Vote Pivot or flash ;)

Flash is far superior. It has a lot more tools and has a lot bigger potential for making amazing animations. Other than that Pivot is free, it just can't match up against flash.

Pivot is by far inferior as a program
that's not to say that pivot animators are inferior to flash animators in all instances, but a flash user has so many tools at their disposal, the possibilities for what you could animate and how are almost limitless

Speaking as a pivoteer, flash is better and everyone knows it.

This is like comparing a Rotary Phone to a Iphone. Pivot is a basic animation software but Flash has so many tools and features in it that it is far more better.

This is like comparing 1 year baby boxer to floyd mayweather