The Vuelta as second biggest for this fan right here (aka me)? Sure.
The Giro with its long interminable transition stages, long interminable climbs with trains going up the mountains & a startlist devoid of the biggest GC stars (who're going to the Tour), just no. It's been going downhill (pun unintended) for a few years now. Last year was all about the bad weather tv broadcast fiasco (nobody actually saw Bernal's mountain stage triumph), the year before was all about Hindley versus Tao GH & the year before that was all about Roglic's problems.
The Vuelta meanwhile has a million punchy climbs on desolate roads, short explosive stages & an overall super-vacation summer holidays feeling (& a startlist with some of the Tour contenders as well). When I look at the profile of upcoming stages during a Vuelta, it's like "woohoo yes, we'll see some action!". Whereas the Giro is... somniferous.
But I get it, i.e. once upon a time the Giro was a super huge deal so that's something which carries over... for a bit.