"better alternative in every way" is overstating things a bit, but my experience when I've sporadically done side-by-side comparisons is that Wikivoyage tends to be more up to date and complete. However, there have definitely been a few articles where Wikitravel was considerably better. Neither is very good for business listings (out of date, spammy, badly sampled). WV tends to be better with practical information, like transportation options from the airport, and how to use public transit.
I think the general idea is that power users on travel community sites mostly choose to use WV at this point, but WT tends to rank higher in searches, so it may get more edits from other people.
