Promise not to laugh - in answer to your question, it depends when you ask! There has been some internal discontent due to external candidates being offered dec's on the 737 at Luton when there is a queue of newly-promoted captains in Belfast, among other places, waiting to get a slot there. This is an issue the company will have to address themselves to as there is a widespread perception that the command allocation system is stacked against internal transfers. It may seem attractive to you right now, but believe me when you are sat in some foreign outpost of the empire trying to get home to live with your family in a few months time then you will be mightily displeased when an external candidate gets your job!
Therefore the short answer is, yes there are currently dec's on the 737 at easyJet and the way easyJet works it is perfectly possible that if your base converts to the Airbus you will wake up with an Airbus rating within a year - can't be bad! The reason I am slightly reticent to say anything definitive is that easyJet recruitment targets vary dramatically from week to week. All you need is a couple of captain resignations to go to Emirates, Virgin, BA etc and the picture changes.
I am a captain on the Airbus and our world is completely different from that of the 737 - it is almost like 2 different companies. Also you cannot compare lifestyles between different bases as they vary so much. All I can tell you is that I have a busy roster for March - 92 block hours made up of 16 flying days half of which are 4 sector days and the other half 2 sector days. There are no nightstops planned and I will end up back at Gatwick every night. The routes can be seen by going on the company website to get a feel where everyone goes to from each base. Most important of all - it is great fun! Hope that helps.