the problem with ubisoft is the constant bragging and highlights they release of their prior to release. perfect examples are any tom clancy games. They're all overhyped, trailer hitched games. the trailer and "beta" footage of the games look absolutely fantastic and make everyone jizz their pants, but when released they drop half the content and throw away a majority of their game support, so as to work on more upcoming titles.
exceptions to this rule (not always) is far cry and assassins creed. ubisoft creates unique and amazing ideas, but poorly implements them. assassins creed started off very well, but later games turned heads. far cry has maintained a relatively clean slate, simply for being fun and engaging even though sometimes monotonous and linear.
i don't even have an opinion of watch dogs.
i am biased, because i love the tom clancy series, especially rainbow six, and they've completely forgeted it up with their laziness.