Man, both are great, you really need to play both to decide. I had STLE for a year and loved it, but sold it to buy a SW pro. Same designer and coder for both, SW is an untamed beast that constantly keeps you on your toes, and has some additional complexity to it with the roving multipliers. ST is a bit more forgiving and has some more "stuff" on the PF. You can't go wrong with either. SW is definitely more polarizing as some people really can't stand it. I'm really happy with my choice to switch, but at least try SW first to make sure it's your cup of tea.