Newbie help on recommendation for caravan

Hello, 

We are newbies to caravanning, we have been thinking long and hard over 6 months, and have decided this week we are going out to purchase  caravan,  we have started by joining CC, we have been to a few dealers over last few days, we have narrowed the caravans down to, Altea Aldor, Swift Quattro, or Eldis, would love some other people's views on these, we want a fixed double bed, full end washroom with separate shower cubicle, not bothered 4 or 6 berth, we are looking at new models 2015 2016. Thanks in advance, we never thought it would be so hard