Thirsties have to be one of my favorite diaper covers. The one size work best with about 10lbs and up. Also velcro works well with small children but as kids get older they like to pull the tabs off. About half my stash is thirsties.
I've had good luck with my thirsties lasting. They go right in the washer with all my other cloth diaper stuff. I have had other brands delaminate on me but the thirsties I got used are still going great after a year of me using them.