Since you can spend a long weekend trying to understand the steps required for ECFVG and PAVE and to compare them, this is a quick summary and comparison of the two programs.

This was last updated on 10/06/11.  The fees don't include miscellaneous living expenses while you are studying toward the exams nor studying materials.

 Step1 Registration and proof of graduation, etc $1,000
 Step2TOEFL minimum scores:
Listening  25/30
Speaking   22/30
Writing      22/30
Reading     23/30
 Step3 BCSE (Basic Clinical Science Exam) $80
 Step4 CPE (Clinic Proficiency Exam) $5,000

Some schools offer a clinical rotation as a residual program from the old days (about $30,000/year) when this could be used to satisfy the clinical component, but this clinical year no longer counts towards ECFVG certification.  Because all the steps are paperwork and exams, it seems like you can do this is a fairly quick manner, but I heard it can take years to get steps done since administrators will decide when you can take a certain exam.  All US States recognize ECFVG.

This is a perfect program if you are, like me, a foreign vet and looking for clinical training in the U.S. before you get the license in the U.S.  This program is intended mostly for U.S. citizens who are fluent in English and are attending non-AVMA accredited vet schools (i.e. St. George's University).  Most US States, but not all, recognize PAVE. 
 Step1 Registration and proof of graduation, etc $375
 Step2TOEFL minimum scores:
Listening  26/30
Speaking   26/30
Writing      20/30
Reading     18/30
 Step3 QE $1,500
 Step4Option1: Evaluated Clinical Experience
Option2: Veterinary Clinical Skills Assessment  
about $30,000/year
A big mistery

So which program is good fit for you?  Well, it costs YOUR money and takes YOUR time so you should spend some time to compare the programs and to think about what you want to do.  I remember having a big, day long debate with my husband over which program is better for me to reach my goals.  I hope veterinaries who have completed the program (either ECFVG or PAVE) can share their story with us so we can have better understandings of the programs and their fitness to our goals, and so on.  In my personal opinion, if you are comfortable communicating in English in both technical and daily life settings and have strong clinical experience, go for ECFVG.   If you don't feel that you have the strong clinical skills necessary to pass CPE in ECFVG, go for PAVE.  I have met European vets going through ECFVG program since their vet education is in English and they have less disadvantage in English than other non-English speaking vets.  That said, I have met non-English speaking vets (Korean and Japanese) going though ECFVG, too.