I've been down this road before and still yet to find exactly what I'm looking for.
I first ordered these from Superbrightleds.com
Good color (I ordered WHITE), no hot sports either. Problem? It's too DIM. I gave them away to my buddy to use for low-voltage lighting project at this house.
Next I tried these (5LED Matrix)
Good color, and bright too. Problem? HOT SPOTS. Also, I noticed a few of the bulbs began to flicker after being on for a long time.
I did find a use for them (I ordered like 7). I replaced the trunk light. Also, my other car, Nissan Maxima has courtesy lights on each door and it uses wedge bulbs. It works good for that.
I tried incandescent next. I heard good things about Polarg bulbs, so I bought it off eBay.

Good light distribution, no hot spots, but.....It's not really white. The needles are about as white as you can get, but the gauges are like an eggshell white with faint green hue.
I didn't want to blow anymore money and it really doesn't look bad, so I stopped here for now.
I haven't tried the 921X12s yet, but I thought about those too. Hope it works out for you.