UU analysis: "Weavile finds itself in a solid position in UU as both a set-up sweeper and physical attacker"
OU analysis: "For most of its existence, Weavile has generally been regarded as a niche Pokemon. This has not changed in Black and White. Fortunately for Weavile, its niche skills are readily in demand"
VGC 2012 analysis: "Weavile is the fastest Fake Out user in VGC 12, and its STAB moves also OHKO many offensive threats. Unfortunately, its below-average defenses and weaknesses to two of the most common priority attacks, Mach Punch and Bullet Punch, prevent Weavile from completely dominating the scene."
So in other words, it's a good Pokémon that's weak to priority--not a good trait for a fragile, speedy Pokémon.
For those of you starting topics about the PS4, there's a PS4 board: http://www.gamefaqs.com/boards/691087-playstation-4