I think you should make a list of what tasks you thing you will need a knife for.
If you will be doing a lot of salami and cheese slicing, and maybe a bit if firestick shaving, I'd probably go with a thinner Becker. If you will be doing lots of chopping and such, then a Busse will probably be looking more attractive.
If both knives fit the duties you have on your list, then I'd look at things like how much money I am willing to spend, and which knife feels better and looks better to me.
By the way, I am working on putting a handle on a Mora knife blank. The blank cost something like $9 American, and Mors Kochanski's Bushcraft book teaches you how to use a baton (wood stick found on ground) to cut through trees. No, not 12" diameter trees, but 4" trees and such are easy to get through. Plus, the 5/32" blade will make cutting thin salami slices a bit easier! I tell you this story just so that you make sure you think about your outdoor needs. I sold my LTC kukri because it sat idly for over a year, and the only time I did use it, I hacked through four half-inch branches just to use the knife.