I keep on coming back to the Clip for easy, portable use.
Do note: the equalizer on the Clip+ is marginal, at best; personally, I think that it hurts the sound, rather than helps it. As to the side headphone jack, some headphones use an L-shaped connector plug, and that works great with the jack on the Clip+; you also can purchase an L-shaped adapter or adapter cord (such as at Radio Shack, which sells an adapter cord with built-in volume adjuster wheel–very handy for portable use), if that bothers you.