All of Undertaker's WM matches became better once The Streak became a thing that was acknowledged, the only exception being HHH at WM17 (I don't even remember if that was before or after The Streak was a thing, to be honest). Taker in the twilight of his career has had the best match at the last 5 WrestleManias, and some of the best matches in his career.
I really hope Taker's last match isn't against Kane. Lets be real here, the storyline buildups for Taker/Kane matches tend to be good but the matches tend to kind of blow. Kane just simply isn't in Taker's league.