We own bunches of all types of toys, but if you are speaking of the "big O bringer" and the one toy type I would want if stranded on a desert island. No question, hands down, give me my RABBIT and a bunch of batteries!!!!! (or a solar powered one..now THAT would be cool).
Yes toys can and do make sex better. I can use a combination of toys and real cock in my case, and have an awesome time. Just don't make it an every single time thing when you are with your partner unless you both are totally good with all the time inclusion.