I only started watching CS GO in like April and then I thought Train was the most boring map in the pool. Fast forward to today, I still think Train is the worst map
Yeah, but successful retakes on Train are very rare (mostly on A) when the Ts get to good positions. Also when CTs are on same numbers as Ts they often have to just save.
Vertigo is the most boring one to watch. Always the same ramp push and then jumping and hiding behind the boxes. At least other maps clearly has two different sites, which are both used.