Okay, here are the comparisons:

eserp: price:€14,100
"DEGREES AND ACCREDITATIONS they offer:

IMBA – International Master in Business Administration
>Private MBA Degree issued by ESERP

MBA – Master in Business Administration
>Own MBA Degree issued by the UVIC-UCC

Private MBA Degree – Master in Business Administration
>Issued by the European Communication School (France – Belgium)

International Accreditation*
>Issued by the University of Applied Sciences, Schmalkalden (Germany)

International Accreditation*
>Issued by the European Communication School (France – Belgium)"

__________________________________________
uc3m: Non EU students: 19.800
AMBA accredited.


What is better? eserp seems to provide far more degrees- but uc3m, seems to give something that is highly considered.
And neither have AACSB, which seems to be somewhat important according to what I read in the forum.

Are these degrees accepted in the eyes of internatioal unis? If I were to use the grades of this MBA to try and go for a PHd for an example - would it be accredited?

UC3M is obviously better. A PhD program would look at your dissertation, and I imagine these private MBAs will not be as seriously assessed.