[Ancient]

I would recomend Podbot MM, YaPB and e[POD]Bot.
They are all AmX X Mod Compatable.
However, they all might not come with de_nuke waypoints.

I can't judge to see which one is more intelligent, but I can judge on which one has more features.

IF you want to spice things up, try putting all three bots together on the same server. It's pretty magical when they all work together.

I use all three, but I tend to use Podbot MM more since it's being updated more often and waypointing of them is easier and quicker. But you should try all three and see which one you like more.