For 20th level, I'm trading in 'bleeding crit', so I get two feats. I'm trying to decide between these pairs. I can't decide, so I thought I'd see if anyone had some input:
Crippling Critical/Stunning Critical - Slow down and stun on a crit. Makes sense since I now auto-confirm crits.
Penetrating Strike/Greater Penetrating Strike - Ignore 10 DR
Charge Through/Lightning Reflexes - Lightning reflexes for the +2 to reflex saves (my worst save). Charge Through is another notch in my 'Overrun' tree, but I'm not sure what this gets me with my pounce ability. Seems like I was already able to do what it was describing.