Fujinon 150mm for me. Cheaper than the 2 big brands and I think a touch warmer. Keep an eye out for the ones with the writing on the side of the barrel, rather than inside the ring (i.e. the newer ones).
Mind you, you will be very, very hard pressed to tell the difference between any reasonably modern (coated/multi-coated) lens from the big 4 in my opinion!
Given you refer to this as a "regular" lens for your camera, it's obvious that you're talking about 4x5, so don't worry too much about this talk of covering 8x10. You're looking at several thousand dollars for a 150mm to cover 8x10, rather than several hundred for 4x5.
Lachlan.