5th Gen Hardest B/W Pokemon to Catch?

[PikachuGuy]

Victini gave me the most trouble, I had to reset a few times until I caught it with a great ball. Cobalion was not hard at all, caught it with a pokeball after paralyzing it and bringing it down to 1 hp with false swipe. Virizion wasn't that hard, used the same strategy as I did with Cobalion. Terrakion wasn't too hard either, still paralyzed it, and false swiped it down to 1 hp and caught it with an ultra ball. Zekrom was easy, used 7 ultra balls. I got lucky with Kyurem, he only took 6 ultra balls to catch him. Volcarona was really hard, he took several resets to get him, I may even change my mind and say Volcarona was harder to catch than Victini. But I still have my Master ball, ready to rock n roll. I won't use it unless I ABSOLUTELY have to, been lucky so far.

 

[Vrai]

I found a Dragonite while I was messing around in the water. |D

IT, HOWEVER, REFUSED TO BE CAUGHT UNTIL I HAD LIKE TWO POKéBALLS LEFT :@

 

[XFakerX]

Victini, wasted all my pokeballs i had and restarted a few times. zekrom was surprisingly easy though, caught it with the first quick ball.

 

[twistedpuppy]

Terrakion annoyed the hell out of me. I don't know how many balls it took, but I had to restart the game three times to catch it. It would run out moves & struggle. >_<

 

[agentwaffle]

Well I found a shaky grass in the giant chasm area...and I was expecting an audino...well.
This metagross came up and decided he'd ignore everything I threw at it...99 great balls :'( only had 12 Ultras on me. He was at red, and paralyzed, then meteor mashed my last Poke'. I had a team of 4 lv 12s or under (was training them while looking for a ditto). Basically I stopped playing for a day I was so worked up.