What's weird about the OPEN SEASON movies is you know who the mastermind is behind those? David Feiss. That's right, the same guy who gave us COW AND CHICKEN and I AM WEASEL is the one responsible for the OPEN SEASON movies, as he's apparently Sony Animation's director now.
The script was supposedly written by someone who wrote Monsters Inc, I think. I know it was a VERY good Pixar movie, and I'm 90% sure that it was MI, which I think is one of the best Pixar films (Mike Wazowski is my favorite Pixar character). So there's that. Sometimes you can have a great line of directors and writers, but they still come up with something not half as good as they'd do alone. Sometimes guys you like do crappy stuff you don't. I think Dana "Master Shake" Snyder is in one of those films.
But I bet David was chief in character designs. If anything, I like the look. The look's solid.
As for the Minions, I've been asking this question for a long time now: yeah, they're cute and amusing and all, but can they really carry a movie themselves?
They do indeed, but things were a might altered. That's why the movie focused on 3 Minions and the villain characters. The huge group of Minions is still there, but they're regulated to their own parts of the movie. In other words, they stayed behind only to appear again later. My tiny complaint about the movie is that the family that helps the three minions get to Villain Con REALLY should have had a little more screen time. But by all means, it's a fun movie. Just like the second Despicable Me, it doesn't quite have the same emotional punch as the first, but it's still a fun movie. There have been much worse as far as CGI children's entertainment goes.
Universal is a special case. They've had 3 DM movies (I include Minions) with a fourth on the way. And only 2 Non-Minion films, one wasn't well received but has a fanbase, and the other didn't come out yet. And that live action hybrid abomination from everyone's favorite Children's Movie Uwe Bowl, Tim Hill. But everyone in the world forgot about it or ignored it, so...