Aldo: the best TDD of any striker ever, one of the first and most successful fighters to school guys with basic footwork and head movement, all around incredible defense.
Holloway: excellent measuring and control of distance, master of setting the pace, the best bodysnatcher in MMA.
GSP: used little more than a stiff jab, blast double, knee tap, and a few guard passes to become the greatest WW of all time and arguably the P4P GOAT.
Edgar: has been the smaller man in almost every fight but has still never been stopped and only lost to championship caliber fighters. Some of the best feints in MMA, great misdirection and head movement, amazing transitions into his takedowns and once he's on top some great top control, passing and GNP.
Mighty Mouse: Takedowns, clinch, guard passing and submissions on a completely different level. Nobody else is tapping out so many people in championship fights. Also great to study for his discipline and mentality.
Maia: not the most athletic, not the strongest, not the youngest, but still the world's most dangerous backpack.
Jones: the best strategist in MMA history. Nobody systematically dismantles their opponent's strengths like Jones. Also the best clinch fighter in the sport, and one of the most creative fighters ever.
RDA: awesome pressure fighting and cage cutting plus underrated boxing and a heavy kicking game.
Struve: the master of distance management.