Prices are pretty close, you can walk forward in both.
My only observation is....the Force fins are more friendly to your wading boot if you use them. It is soft Neoprene as versus Rubber and even plastic.
The advantage to the Omega's however, if you have a FLOAT TUBE, you could lean back, straighten legs and use the same motion as a scuba diver. Making it able to move on the up and down.

I can't think of any negatives to either fin...so it comes down to preference.

FG