For bellows length or other camera specs. get or borrow a copy of Leslie Strobel's View Camera Technique. It has the most extensive chart of 4x5 view cameras I have seen.

As to more bellows = better, I would have to say that is true only if you don't use short focal lengths. If you do then you may need to be able to change the regular long bellows for a short bag bellows. As far as a do-all bellows length is concerned I think the Canham metal cameras seem to be the best unless.................

If you read a lot of threads about best camera you will see that there is no such thing. You need to figure out what you need and then make the appropriate compromises. If you are like most of us that means you will get close to what you want about the third camera you buy or live with.