Maybe not a 100% fair comparison, but I have the Dozier and a full-size Pika, both right here on the desk.
For starters, both are very well made. For the price of one similiar zytel handled folder from Spyderco or Cold Steel, you can buy both the Kabar and Pika. A no-brainer there.
KaBar:
very solid lockup, nice blade shape. I like this better than the spearpoint, which I also own. It has a sharper tip, but still retains a thick blade and strong point. Reminds me of the Spyderco Standard. Ergos are good, because the handle is smooth (no finger grooves). Zytel has a grippy texturing, like gun checkering. There's room to put your fingers where you want 'em. Hole opeing is great, because of the sharp edge hole (at least on the side I use). the hole appears to be punched out, leaving sharp edge that grabs your thumb easily. Clip is kinda cheesy, thin, narrow, and ends in an outward-pointing end, which I don't like (too easy to scratch things, like car doors).
Pika:
has a more expensive look & feel. the zytel looks nicer, but functionally has less grip texture than the kabar. solid lockup. opeing hole looks better, since it's chamfered (smoothed and concaved), but it's easier to slip off while opening. handle looks like nice finger ergos, but all the hills & valleys make it worse, because if your fingers don't fit just right, it feels wierd. clip is much better than kabar. high-riding, smooth, and ends in a downward-pointing end.
I like them both, they are great deals. For $20$25, you cannot go wrong either way. I would like to get the mini-pika as well.