OK I've been to both. Avillion overall is nicer, it has a resort feel to it with nice surroundings and landscaping, several pools to choose from including one adults only pool plus the pools are open 24/7 so you can go skinny dipping at 3am if you want. There is a petting zoo for kids, with a peacock that goes around when it feels like it, you can play Wii Sports at the beach hut if you're bored of staying in your room/beach etc. The beach is also maintained by the hotel staff, so the sand is clean although the water is yucky. Breakfast is nicer at Avillion IMO. The open shower concept is nice for a day or two but stay there a few times and it gets old

The down side is the place is old, I first went there back in 1998 I think and it hasn't really changed much in 10 years although the place has been refurbished over time.

Legend is much newer and also much bigger. There's only one pool and they don't bother much about landscaping. The rooms themselves are nice and big but it feels very much like a regular hotel, not a beach side resort like Avillion. Most of the water chalets are made of concrete so it feels sturdier.

On the down side there's no beach at Legend. There's a huge construction project next to it, which is an eyesore if you're on that side of the hotel. The hotel attracts tourist by the bus loads, but because of the size of the hotel it doesn't feel full.

Overall if the price is the same I'd go to Avillion. I've been to Legend only once and don't plan to go there again. I've been to Avillion since 1998 and will continue to do so.