The Evolution pumps will be fine with a softy tank. The Evolution 1050 are kind of small for more flow dependent coral such as sps though.
IMO the VorTechs are much more suitable for any tank, any coral. They are adjustable flow and can therefore be used with tanks housing softy's, LPS and/or SPS. BTW, mixed reefs with LPS and SPS are extremely common....and successful, if done properly. I say, 'if done properly' because I've seen exclusively SPS tanks with no LPS at all that are total failures. So just because you have one or the other type of coral doesn't mean you'll have a successful tank. It comes down to much more than flow. Don't forget, you need appropriate lighting, parameters, nutrient export, husbandry, flow, aqauascaping, etc.
In your 120g tank, one VorTech MP40w ES will work fine. Two will offer more wavelike control, but is unnecessary if coral placement is done properly.
Best of luck,
Russ