Indeed HH makes some of the best value pours in the business. I have had and go back to Old Fitz BIB, EW BIB, HH 6/90 and am on the lookout for McKenna BIB and HH BIB.
Don't forget Dant. I don't know if they still produce T.W. Samuels BIB though the bottle or two of that I've tried didn't really appeal to me for some reason.
When using bourbon as a mixer I really prefer something with some oomph. Anything under 100 proof just doesn't do it for me.
If I could only pick one it would be OGD114 but any BIB would do.
If its being mixed WSR if there is any chance of neat FRYL. 9.99/15.99 lots o value there.