You will get many answers telling you why the responder thinks Flash isn't on the iPad, and, I suspect, some suggesting you're somehow an idiot for anting to use Flash.
1. It's not on the iPad because Apple won't let it; Apple's stated reason is that it's buggy and a battery hog. Since neither I nor anyone else here is telepathic, we can't read Steve Jobs' mind, so there's no evidence ofr any other reason.
2. Whether the iPad is better than an Android device is for you to decide. If you really want Flash, or you prize the ability to customise, or you like different forma factors, Android may well suit you better. I prefer the iPad, for it's instant usability. I find some of its limitations very irritating, but mine has been reliable and functional for the over 11 months I've had it. I believe that Android still has some way to go to compete in the areas that are important to me - reliability, usability and battery life