If i could do it again i would go with the 9" over the 8.8.
I respect 84ttop's opinion but i disagree, if you priced out a 9" versus a 8.8 with 9" ends and equivalent axles you would find that the 9" isnt that much more money, and you have the choice of better housings with multiple upper and lower control arm mounting points, plus, you have a rearend that will hold its value if you ever decide to sell it. The resale value of a built 8.8 is terrible compared to the 9"
C-clip eliminators are the worst band aid for a 8.8 and the price(and quality) will vary depending on who installs 9" ends on a 8.8