I bought a rubber rand for the simple fact that I felt like bungee rands were marketed for pussies (see my post: rant rant rant). Bungee rands are easier to put on, but they implode easier too. But, in all reality if you're just starting out, it will likely be a while before you really need a rubber rand anyway... you know, unless you're already goin' off 20 footers and stuff...
I struggled with my rubber rand for a bit... it was pretty tough to put on for a while, but now that it's broken in it's perfect and I love it.
It's a good day to be a duck....