It is a matter of preference. Lyrica is a schedule IV, I believe. It is more potent. Gabapentin, while unscheduled, is similar in effects. I prefer the latter. The high is cleaner.
Everyone says gabapentin is the shit version of pregabalin (lyrica)
I was on pregabalin for ten days only 150mg a day but had side effects, I also tried gabapentin of a neighbour and didn't like it, felt manic and fast heart