Hello Jamie, Being in the lucky posittion to own both, I have to say they are really complementary. The Sony eq is amazing, very versatile, as you can choose different Eq curves. The comp is Wooow !!! Especially the "warmth" knob
Mc DSP stuff is probably easier to use, the results are great too ! But IMO, the most important : support people from these companies are the best you can find around software developpers
Try the demos and have fun 