The grass is always greener.....I'd stay put if i were you. With BA and Virgin you would be waiting a hell of a lot longer for command. With Easyjet and Co you would get a quick command and be fed up of the place within 2 years. And whats all this about doors closing in front of you when you reach your thirties?never heard such rubbish in all my life!Sure you have at least 30 more years to be a skipper,whats the rush!I bet ther are plenty of captains out there who would be only too happy to swop places with you.
Best of luck whatever you decide.