If I were choosing between the two it would be Radisson, without a doubt. Unless you're a big drinker, its really a shame to miss all the great restaurants in Aruba.

Personally, I'd stay at a timeshare. You get a bigger room, a condo, you can have drinks in your room looking at what you came to Aruba for, the beauty. You can eat the smaller meals in your unit, if you chose to do so, and again enjoy the beauty and save money.