Want I really want to know is what mics people have had success with. What kind of cab are you usually micing and what is the mic placement and the style of music? If you want to mention pre's feel free. Im just curious because I've only had a lot of experience with DI bass but my favorite records often turn out to have been recorded with a miced cab. Again Im interested in any style you might record with electric bass.

i am a big re-20 fan.
i use a re-20 with a ampeg b-15, i also use a di, and sometimes a soundelux u-195.
on everything.

I had good results with a Senheiser 441. In fact I've had good results with that mic on tons of stuff.

RE-20 is wonderful if you have one, I use the AKG D-112 with good rewults, if it's not on a bass drum. Otherwise, I may go with an AT4033 or SM57 (not as good IMHO, but depends on the tone you want, so YMMV.)

My fave amps to mic are Ambeg B15 or the SVT300. I will often use tube guitar amps if I am also taking a DI (that can deliver the real low stuff not in the gtr amp)

Mics that work well are usually the same mics that work well on kick drum. Shure Beta52, AKG D112 (or better yet the D12), RE20, or a 421. I usually start pointing straight at the cone a few inches back and then adjust to taste.

I always double mic bass cabs to get two different sounds. Bass is difficult for me to get right in the mix and I like having two different sounds to work with.

I've had pretty consistant success with an MXL 2001. I like it better than my D6 - it's got a smoother response. The other mic I use is counter intuitive (it's got a significant rolloff below 70 hz) but it has worked well for me. It is an Audio-Technica MB2000 (new model is an MB2K). This mic has a hot high end and it really captures the vibration of the strings. It is the opposite of mushy - it gives a very articulate, defined sound. On the last project I used the MB2000 tracks exclusively on most of the songs with no EQ.

On the bands I've recorded I've used my Sansamp Bass Driver about half the time and miced the cab the other half. I really like having both options. On a doom metal project I did a few months ago the bassist had the top of the line tube Ampeg and after experimenting with micing the cab vs. using the Sansamp we were able to get a better recorded sound with the Sansamp so that's the way we went.

On the last project I did the bassist had a Hughes & Kettner which sounded great. I've found more difference in basses than amps/cabs. Some basses can have some really ugly frequency peaks that are a pain to deal with.

Some of my favorite bass tone ever was with a Beyer Soundstar X1N. It was their version of a 421. Looks like a ray gun from Lost In Space.

Thanks for the comments so far guys. I noticed lots of mentions of the D112/D12 but only one passing mention of the D6. I hear the D6 is better on kick, is it a different story with a bass cab or has anyone compared the two in general?