Paul, LBV is a championship course ( all 5 of the Disney 18 hole are) it's been the third course used for the Disney classic for at least the last 10 years.
I'm guessing that your partner is worried about playing a course that's too demanding for them. They shouldn't worry the courses are not really that much more difficult than many of the courses you'll play here, it's more to do with the quality of the course i.e. the standard of the greens, fairways, teeboxes and facilities of the courses. I'll try to give you my thoughts on each of the courses so you can pick the one that suits you best.
LBV, the second shortest of the WDW courses, but significantly tighter, as you weave in and out of the buildings of OKW if you're a little wayward at times it can leave you with impossible "recovery" shots. It does have some attractive second shots over water to the greens on the par 4s and has a signature par three with an island green. What it lacks in length it makes up for with small and well defended greens. It's a good course if you're short (length of golf shots

)but accurate.
http://disneyworld.disney.go.com/wa...olf/courseindex?id=SAGolfLakeBuenaVistaCourse
Eagle Pines,The shortest of the WDW courses but not to be taken on if you have trouble getting the ball away from the tee or a habit of "topping the tee shot" as many of the holes have a scrubbly almost bunkeresque ( it's like a very hard sand bunker covered with pine needles, which is where the pines part or Eagle Pines comes from) arrangement to clear before you reach the fairways. Many of the holes you have to clear 150-175 yards of these pine areas just to reach the fairway. Get in one of these and it could take you a couple more shots just to reach the fairway. The up side is that it does have relatively forgiving landing areas and if you hit the ball a decent distance, but lack consistant accuracy this may be a good choice.
http://disneyworld.disney.go.com/wa...olf/courseindex?id=SAGolfEaglePinesGolfCourse
Osprey Ridge, my favourite course and a joy to play. Beautifully laid out and the chance to spot some great wildlife. By no means is this an easy course, but it is reasonably forgiving ( more so than EP and LBV IMHO) if you hit a bad shot now and then.
http://disneyworld.disney.go.com/wa...s/golf/courseindex?id=SAGolfOspreyRidgeCourse
Magnolia is the longest of the courses, but does give you plenty to aim at. There is a fair amount of water on the course, but if you aim to avoid the water there is usually plenty of margin for error. If you don't hit the ball a long way (more than 170-180), pars are almost impossible and bogeys are a good score.
http://disneyworld.disney.go.com/wa...ties/golf/courseindex?id=SAGolfMagnoliaCourse
Palm , this is a very pretty course ( most of them are LOL) and probably deserves it's reputation as the toughest of the Disney courses, you need to be reasonably long off the tees and reasonably straight to give you a chance of hitting pars here.
http://disneyworld.disney.go.com/wa...tivities/golf/courseindex?id=SAGolfPalmCourse
I hope my ideas on those courses help you to decide on a course that suits you playing partners ability the best. At the end of the day, if no one's counting the shots too seriously then it should be about enjoying yourself on a beautiful course and remembering the good holes.
For a high handicapper who can hit the ball a semi decent distance but mixes in a few moody teeshots I would suggest the following order of preference. OR, Magnolia, Palm, EP then LBV.
I would only pick LBV as first choice if they are very straight, but just hit the ball 150-175 yards off the tee. IMHO a high handicapper will find LBV frustrating as they could get into a lot of problems, resulting in only having the option of a sideways chip back onto the fairway to give them a shot at the green. Most of the other courses give you a little more room to hit slightly off line, but still feel it was a "good shot" and more importantly let you go for the green with your second.