Hi,
First Choice Airways are deffo a good company to work for, also Thomas Cook Airlines are another good charter company.
But if you were thinking about longhaul cabin crew, then you might have to be patient, as many cabin crew members start on short haul for their first few years, or summers.
As you are probably aware, there is a great atmosphere working for a charter airline and the majority of the pax are always happy, as their on hol!!
Cheers.