No L lenses so not much 2 lenses?That's like how long is a piece of string but I'll give an opinion.
If you are travelling you probably don't want to go to heavy. Without making this a canon Nikon pissing contest it's fairly widely agreed that newer Nikons have better dynamic range which is good for landscape.
However I've seen fab landscape shots from canon cameras also.
How invested are you in canon lenses?