I went AC lift, and love it.
I did discover a ripped inner cv joint boot during my last oil change, but it was very fresh, and doesn't look like any grit got into the joint. Going to replace both boots on that axle this weekend.
Did I mention i have 105,000 miles on those CV boots, 60,000 miles of which were with the lift installed? I think they lasted their expected life. I doubt not having the lift would have made them last appreciably longer, it's a rubber part, and subjected to all kinds of abuse, salt etc.
I'm sure which ever way you go with the lift you'll enjoy it!