A 40-something friend of mine went in for surgery, and the deal was that the doc would do the resurfacing if his hip was good enough, otherwise he'd do a full replacement. My friend didn't find out until he woke up. (Total replacement, as it turned out.) The resurfacing is preferable for an athlete but it depends on the condition of the hip.
Robyn Benincasa, one of the most successful U.S. adventure racers, has had both hip resurfacing and hip replacement surgeries. Her story is not all good news but it has turned out well for her in the long run, and she remains very athletic.
http://spryliving.com/articles/joint-resolution/