As someone who EDCed the XL Espada G10 for a couple of weeks, before going down to a Spyderco Resilience, I can say they are big knives. The XL will fit in a jeans pocket, but not straight up and down, angled towards the front, and you won't really want to carry anything else in that pocket. The wave function works well, but you may have to give the blade a final shake to get it fully open.
From people who've talked about the slickness of the G10 on the aluminium models, I think that the G10 only version is probably better to carry in pocket.
The Large Espada, or XL Voyagers are probably the best compromise between size and utility. I've just received permission from our Police to import a 5.5" Cold Steel, so I'll probably get a Vaquero in a few weeks time. You cannot use a XL Espada for general work. It's sharp enough, but people nearby will get that "my God, it's a knife murderer," look in their eyes when you pull it out. The LE and XLV are probably still a bit big, but not quite so bad.