I "discovered" Yes in the past week or so. A lot of music listeners despise progressive rock for its pomposity and arrogance, but I love it. Perhaps the Enz of 1975-1976 prepared me for it. I hear shades of Yes on Mental Notes via Eddie's keyboard work. The extended instrumental passages on songs like 'Heart Of The Sunrise' (1972) echoes in the likes of 'Stranger Than Fiction'. Also, the musical proficiency and expertise of what is/was, let's face it, an all-star band (Steve Howe, Rick Wakeman and Bill Bruford in particular) sharply mirrors Judd, Rayner, Wilkinson and Crowther.
In the 'Spellbound' doco, Eddie mentions that when he joined the Enz, it was the end of him doing, quote: "Yes and Genesis covers".
Also, in the 'Stranger Than Fiction' book, Mike notes that when Eddie was in Orb, their repetoire included the best material from Yes' then current album Fragile.
It's amazing to think that Led Zeppelin was a major formative influence on Judd-Finn because their early songs couldn't be more unlike Page-Plant.
When the Enz arrived in the UK in 1976, the press struggled to pigeon-hole the band, resorting to comparisons with King Crimson, early Genesis (i.e. the Peter Gabriel era) and Roxy Music. To quote Homer Simpson, "You're close, but way off."