Re: Easiest guitar to play?
If you can play fast, you can play fast on pretty much any guitar unless the action is like a half inch high.
That said, I would get a Ibby Prestige over a Charvel or Strat any day. If you like Strats, I'd get a Warmoth unless you are lazy or don't have the skills to put it together.
The RG2550 is ok. I would look on fleabay for slightly used ones. If you can wait, there are some good deals to be had on Prestiges there. There is a RG3120F ANT on fleabay right now for $975 b.i.n. I'd recommend that one over a new 2550 any day.
If you don't need a trem guitar, I recommend an RGA121. They can be had for about $500- $600 usually on fleabay.