...... My favorite of the bunch is a regular old Ti bbl'd action, put in an Edge.
I agree with Calvin and Montana Man......have had a slew of 24" and 22" 270's. I find the 22" feel just enough "better",to me,than the 24".
As to delivered velocities being faster in the 24",that is a very firm "maybe".I've seen some 22" barrels that were faster than some 24's with the same load.The "internals" of the barrel have more to do with delivered velocity than barrel length with the 270.
Besides, once you have a 130-270 doing 3100 fps, getting 3200 doesn't do much for you.
My choice would be a Krieger or Brux FW or #1. I would not hesitate in the least to take a Rem MR or ti barreled action in 270,factory contour ,and drop in an Edge.Pretty hard to improve on that.I know this because I have done it.