Hi Simon. Not built one of these kits before, BUTI would recommend that you get the one you like, rather than what i or anyone else would recommend.
If you are buying simply on what someone else thinks, I would say you are building for the wrong reason!
Generally speaking any boat will handle some waves if it is sealed up against flooding, and provided it is not top heavy. To this end, if you decide on a particular boat, then you can ask questions regarding the craft in question ie sealing it up and is it top heavy.
I know it is contentious, but a boat in rough weather needs some power, so anything you build needs a bit of oomph to compensate for lack of rudder steering in a gale.
Ashley
(usual disclaimer, my own personal view; this post does not represent the view of the publishers, forum manager or indeed Paul T)