On Gonzaga, the teams they've struggled against are mid-level conference teams that they simply took too lightly. You mention UOP, but forgot to mention that Gonzaga beat them by almost 20 pt's, 76 to 58, once they woke up. How many times have you seen one of the top NBA teams get beat by one of the worse teams in the NBA. It happens! Does that mean the best team won? No, of course not, and you don't judge that top team by that one game. I try to never speak in absolutes because predicting how good a player is going to be in most cases is extremely difficult, unless it's a very young Lebron.
I was very high on Bradley Beal coming out of college, and you can't believe the arguments I had over him. I had people on this forum arguing that Tatum was a poor man's Rudy Gay, or worse. I do my best to always look for the positives in a player, and not the negatives, although I will discuss those before the draft. I don't ignore them. I try to concentrate on the little things a player does, and what system he's being asked to play in. Many times the system or the coach, or both don't really fit the player. In Mobley's case, he hasn't had a real chance to showcase his talents. I'm not saying he's the next David Robinson, I'm saying his game resembles David's. Robinson could score inside and outside, but he was a great post defender and rebounder. Is Mobley as fluid? I have no idea, and frankly I don't care.
Aldridge has never been known for being a rim protector or a great rebounder. I think he averaged double digit rebounds a few years in the middle of his career, but probably 8 a game for his career. That's not a knock on Aldridge, who if Mobley turns out to be like, I'd be OK with. Mobley is a very good rebounder despite his lack of strength, or size. He does a good job of rebounding out of his area. So imagine him with 20 more pounds of muscle.
By the way, Gonzaga beat Kansas, Auburn, Virginia, Iowa, and W. Virginia on their non-conference schedule and they have the best record in college at 19 and 0. Just for you, here are the highlights of Kispert in a game I watched against a ranked Virginia team.