Bullet choice is always bound to cause a heated debate whether round a campfire or on a forum....... however, my personal opinion is:

I'm a great fan of fast opening bullets at moderate velocities on cats and my first choice is a HANDLOADED Winchester Silvertip (calibre doesn't matter much but the factory loaded version is (IMO) far too fast) and second choice is a Woodleigh SP (NOT PSP). Third choice would be an A frame which seems to me to be one of those rare bullets that do most things reasonably well.

The bullets I'd least like to use are the TBBC and Rhino as I've bad experiences with both in the past and maybe that's coloured my opinion, but I personally reckon both are only good for fishing weights....... that said, a lot of people love 'em.