Jackson and McClellan were certainly not brawlers, McClellan especially (skilled boxer-puncher with great footwork). Tyson was definitely not a brawler, he was a mid-range counter-puncher.
Have you seen Big G figh and the hawk? they can box but they have the brawler mentality on the other hand Joe its a boxer puncher,but he doesnt brawl! he waits his time and hits you, just like with the boom like mosley
Calzaghe was a straight-ahead brawler who took punches to land his own, and overwhelmed you with his workrate and power. McClellan preferred to circle opponents, use his jab as a range-finder and time his launches.