I think you can be called "Dr." in the states because it's considered a doctored grad program there; but it's really not something I'm concerned with so I never did research on it. You may want to send an email to AVMA and ask them what the deal is regarding that. I definitely know that Vet's are NOT called Doctors in the UK.
The last time I saw anything about Glasgow's NAVLE pass rate, I think I remember it being 80-somthing percent. It is on their website, just can't remember where I saw it. Joyce Wason would probably know the answer to that one.
When i passed the NAVLE in april - the envelope said "Dr" - didnt even need to open it then!! Yes, apparently you are entitled to be called Dr - even though technically you havent done a DVM. i guess its because you have passed the same exam as DVM students.
For the record I just graduated from Dublin, if its horses you are into Dublin as 5 fantastic equine surgeons/meds - all did residencies in the States. And they are all very very sound as well - some of them even join us at our house parties!!
Glasgow does have at least one excellent equine surgeon - Paddy Pollock - and quite a number of my friends have done clinical EMS at Glasgow uni and really enjoyed it.
As for a BVM or MVB not being seen as equal with DVM in the US - the 6 people who applied for equine internships in the US this year got them - including in KY, UCDavis and NY and the only 2 to apply for SA/Exotic internships also got their places. Infact, I do know that if you are interested in KY internships, they take on Irish graduates every year (and I believe a Glasgow grad last yr) - in fact 3 Irish students (2 who have passed the NAVLEs) start there on Monday.
As for EMS - you should be able to do most of it in the States if you plan on goinghome for the summers.
best of luck with Glasgow - i believe its really good, I have a number of friends there.