My favorite is The Man Who Shot Liberty Valance (#10)
Some others I like are #90 The Good, The Bad, The Weird:
#72 Lone Star
#71 True Grit (2010)
#70 Bring Me the Head of Alfredo Garcia is certainly the most bizarre Western I know. It’s not very coherent. #44 The Wild Bunch is much better.#36
#36 Treasure of the Sierra Madre
#22 Red River
#20 The Wind. I haven’t seen this in 50 years but remember it was excellent. It have never been on DVD or Blu-ray
#16 The Searchers
#5 McCabe & Mrs. Miller
#1 Johnny Guitar – I wouldn’t put in #1 but it’s a strange film well worth seeing
Sad! 