Recently, I realized that I find it annoying when a team wins 5 legs in a row. (e.g. Paul & Steve, Justin & Diana) It makes the team dominate and give less chances to others. I know it's a race and it's actually good for the team that they're winning so much, but it just ruins the season in such a way.
Another one I noticed recently is when a season has 4 to 5 elimination legs straight. The worst was in TAR12 when there were 6, it was unfair to the 6th place team for just having raced 6 legs. There might even be 7, but I can't remember, and I probably wouldn't have bothered back then, knowing that NELs are just common towards the end of the race. Back to my point on 4 to 5 straight eliminations, while recently watching TAR28 and TAR Aus 1, seeing 4 to 5 teams go home straight in a row makes the game feel like it's about to finish faster. Weirdly enough, I feel exhausted when so many teams get eliminated in a row, especially when I watch TAR Aus 1 as a marathon.
I don't like many straight eliminations, or at least have more NELs early in the race.