I'm just not a big fan of either at this particular moment, they could set the world on fire over the next 2-3 months but right now I look at them more like a Trubisky or Bortles than a Goff.
Lock has a massive arm but he has accuracy, pocket presence and overall consistency issues, he definitely throws a pretty ball though and can take the top off any defense. Many of Herbert's throws on the other hand are manufactured, almost every college offense is based on some sort of spread/read option principles, but the throws he's making there are much less pro style than, say, Goff at California.
The offense they're running is much more like what Griffin ran at Baylor and I also worry that he has very little experience with what amounts to amount 1.5 seasons of starts under his belt at this point. He looked really good last night though so we'll see.
Like I said, they could kill it over the next few months but I think it's much more likely that we're looking at a couple of Trubisky type prospects whereas I think Tagovailoa and Haskins could be much higher level prospects.
Will Grier might be another guy to watch although I haven't watched him especially closely.