Masami Hirosaka - (On-road and Off-road)
Brian Kinwald - (On-road and Off-road)
Joel Johnson (On-road and Off-road)
Rick Howart (On-road and Off-road)
Ryan Cavaileri (Off-road only)
Billy Easton (On-road and Off-road)
Masami has 14 or so world champion titles - undisputed best driver in the world, period. Brian Kinwald was dominate in off-road for about a decade and was making the A-main at on-road worlds. Joel Johnson was dominate at on-road for a decade or so, and won an off-road world championship. Rick Howart has been making A-mains in on-road and off-road for more than a decade. Ryan Cavaileri has been dominate at off-road, everybody's lucky he dosen't race on-road too. Billy Easton has been a consistant Worlds finalist at on-road and has an off-road world championship too.
Most of those guys have been a dominate force for more than ten years. The fact that somebody can be a worlds finalist 10+ years ago and be a world finalist today shows real talent and ability