I haven't seen the Burberry jacket, but we carry the Schott jacket in our store. The pictures don't do it justice - it's really beautiful in person.
That said, I can imagine that its totally different than the Burberry variant. The Schott jacket is done in thick glazed cowhide. It's not that expensive of a leather, but it's tough as hell. It's a true motorcycle leather. The jacket is stiff and meant to be broken in. It works great with raw jeans, and is definitely a casual piece. You can probably wear it for 20 years.
The Burberry jacket - I imagine - would be the typical Italian "fashion" leather jacket in a soft calfskin or lambskin. The leather is probably more expensive than what Schott uses. It's not necessarily higher quality - just a different quality. It's going to be soft and light, and might be worn with light jeans or dress trousers.
So the quality difference all depends what you're looking for. Chances are the Burberry jacket is a bit overpriced (given their advertising and PR budget), but it's probably a nice piece.
One thing that I can advise - don't buy a leather jacket from somewhere like H&M, Benetton, Old Navy, etc. Back in the days, I would always get sucked into their $150 leathers, and end up getting something that looked and aged like shit. If a jacket's going to be full price, something decent is going to be pretty much $300 and up. If you're on a budget, grab a quality vintage piece off Ebay instead.