Beach hotel advice, please!

[WestEndGirl]

I'll be there between Xmas & New Year.
Normally, I'm a full time cliff dweller.
Thinking about splitting my stay this reach.

It seems lots of places are filled already.
Want to stay seaside.
Considering a stay at Rainbow Arch, Mariposa, Firefly, or Grand Pineapple?

So far, Rainbow Arch is my lead. I like the location & heard wonderful things about the food.
& almost nothing about the rooms!?

Any thoughts on these.....or other suggestions?

Thanks!