As a guy who's playing a Champion/Totem Warrior I can tell you that there is nothing more satisfying than watching the dice come up crits for my attacks. I've had instances where I get two, or even three in a row! A couple sessions ago we were fighting a Hobgoblin patrol, we mopped the floor with them but one of them was getting away. I took out my Greatbow and got within minimum range and fired two arrows, both were a roll of natural 20 and 19 respectively. Took that Warg Rider out, although to be fair both rolls were 2d10+1 each, I forget how much I did but it was about 30 something after everything was totaled.
Fun part is that's not even my best weapon (He's mainly a heavy, two handed kinda guy), I'm picking up Archery next level so I can switch hit seeing as the other fighting styles do absolutely nothing for me. Still, the flipside is there are sessions where I don't crit at all, but is that really so bad? I still crit more often than the rest of my party, and have been for the past 9 levels since I first became a Champion (Level 12).