Werdum fluked, Lawler was originally a ufc fighter, rockhold was a one hit wonder, woodley can be judged in the future,
and, U fukin wot m8?
Aldo and Cruz came and dominated UFC just like they had in WEC.
Ben Henderson also came from WEC's supposed "weaker LW" division but he kept winning in the UFC and eventually won the title.
Anderson lost a couple times in PRIDE, won a few in Cage Rage and then came to the UFC and didn't lose for 7 years.
Antonio Rodrigo Nogueria had already been fighting for over a decade, had been in more brutal wars than any other HW, yet he still was able to capture the UFC title in his zombified past prime state.
Werdum was never top 5 in PRIDE and may barely have been top 5 in Strikeforce. But once all the older HW legends began to fade away and Werdum trained with old school Cordeiro to improve his striking, Werdum managed to finish Cain to win the UFC gold.
Rampage beat UFC posterboy Chuck both in PRIDE and in the UFC four years later.
Shogun came into the UFC after multiple knee surgeries robbed his prime years, yet he was still able to win the UFC belt.
Rockhold, Woodley and Lawler came straight over from Strikeforce and took the UFC titles soon after. Sure, Lawler began in the UFC first but he went to other supposed "smaller" organizations for a few years and returned to the UFC to take the gold.
Look how Mark Hunt came in and destroyed all the UFC strikers like Kongo, Nelson and Struve.
Damn, there sure are a lot of guys who came in from PRIDE, WEC and Strikeforce that just came in to the UFC and were very successful. Not sure how you can argue that.