I'll publish one right here. I specifically did not use cash as the baseline value because that always sidetracks into discussion of under/over valuation of miles in general. Using United miles as the baseline value of 1:
UA 1
AA .95
DL .70
US .80
WN 1.15
BA .80
NH 1.05
SPG 1.40
Hyatt .90
Hilton .40
Marriott .60
Amex 1.1