Most of those 3 pins ceramic resonator i know have built-in capacitors. Those you post above don't, so you'll have to add 2 extra capacitor to make it work.

16F84(A) is popular 'cause it's the first Flash one (16C84). Many code example here and there in ASM. But you don't want to use it for a new project unless you don't have access to something else. Most newer model are also cheaper... see WAY cheaper. Good enough for a pin board

16C54 have been popular as well.. now they have 16F54