In reply to Gus Mayor:
> As a British Citizen can I do this assuming I speak french?
You can. A number of British climbers have qualified through the french system.
>
> I guess its the same standard but do they teach the same techniques?
No it is completely different. Far more candidates apply to the french system each year, making it far more competitive. I think the rock and skiing standard is much higher for the ENSA scheme, but the amount of alpine experience is much lower.
Obviously I'm not a guide and haven't attempted either scheme, but as a brit it would probably be far easier to complete the BMG scheme, rather than the ENSA scheme.
Jon will know for more about it than me. Probably best to ask him.
Cheers,
Tom