I have both ESC's... here is what i have to say:

For value, best bang for the $ ... SP/HW ESC.
For super customer service/support ... Tekin RS/RSPro

Both are equally fast ESCs given the right setting for a given driver.

Also they work/dont work in some applications. Ie Tekin supports 1s, while HW does not, so if you are into 1/12 or similar, then Tekin is your answer.
I find SP/HW has better support in sensorless motor support.

Anyway, both are good for my purpose. So think how much you want to spend and then buy the one you want to afford.