As far as great warriors go, Broxigar is up there. He heroically sacrificed himself to save the world during the War of the Ancients, and is the only known mortal to have been confirmed to strike and actual, physical blow to Sargeras, or possibly any fully empowered titan. Note that our fights in Argus were not against fully fledged, life-size titans.
Grom Hellscream is another extremely important warrior, who plays a prominent role as the Warchief of the Iron Horde in Warlords of Draenor, and served as the Warchief of the original Fel Horde that invaded Azeroth. He would later heroically sacrifice himself to strike down Mannoroth and free the orcs from the control he had over them through the Fel Blood Curse.
Looking away from the orcs for a moment, Varian is perhaps the most prominent Alliance warrior. Having survived a plot to usurp him by literally cleaving him into two different people - one passive and one violent - he has spent a long time as a top-notch gladiator and has even won the favor of Goldrinn, a demigod. Following with the theme of the warriors listed here, he would of course go on to heroically sacrifice himself for the sake of his comrades while facing off against agents of the Burning Legion.
If those three make out the absolute top-tier of warriors, the second-tier list would probably look something like: Varok and Dranosh Saurfang, Muradin Bronzebeard, the original Kargath Bladefist (The alternate version being more like a rogue than a warrior) literally replaced his limbs with weapons, General Nazgrim and Admiral Taylor for the Horde and Alliance respectively, Cairne Bloodhoof (who had a more spiritual approach to combat than simple honor/glory) and of course Garrosh, although I donât personally count Garrosh among my great warriors, because he relied very heavily on borrowed power.
Who youâd âlook up toâ in an RP sense really depends on what kind of warrior you want to be. Grom and Garrosh are great idols if your idea of what being a warrior means is to be as mighty as possible. Cairne is there if youâre more of a âjust cause and balanceâ-type of warrior, who sees combat as a necessary and natural part of living in a harsh and unforgiving environment. If you are a âjustice!â-type of warrior, Varian is up there. Warriors are ultimately the backbone of any army, and warriors in Warcraft have been known to make good wartime leaders, but their violent tendencies tend to lead to more conflict. They are ultimately driven by rage and a lifelong quest for glory. If they do not fall in honorable combat, like Grom or Varian, they often end up bitter and broken, like Saurfang.
The life of a warrior is often quick and brutal - the flame that burns the brightest is the first one to go out, and no fire burns as brightly as the rage in a true warriorâs eyes when he throws himself against the enemy with reckless abandon! This, of course, means that there are few who live long enough to build a legacy as vast and epic as others, who value self-preservation over glory.