Pinsir's back in OU baby!
RU's got a couple of returning pokes as well. Zapdos is also an amazing addition in a bulky water tier called UU with the ability to pull off offensive and defensive sets.
PU got the best of this shift this round as it gained a lot of mons and lost none. Exeggutor seems the best of the bunch by looking at its sky-high SpA, movepool, and Chlorophyll ability.