Legend Maker is the set I have the most time looking at and it flows so well. Delta Species wowed me as a kid and even now and I really think it is the coolest set in all of pokemon.
Besides long time favourite EX Deoxys I must say the EX Legend Maker is really good as well. When I was learning all the new things from gen 3 products it didn’t strike at all but through the years my opinion has changed, Mew and many other Pokemons look so good with haunted forest backgrounds.
My preferences go for the trr - frlg - delta species
FRLG
Personally I LOVE TMTA I just love all the regular holos in that set and the dogs are classic EX cards. A great set to collect for budget too since there are no gold stars in that set!
Has to be Ex Team Rockets Returns; followed by Ex Team Magma Vs Aqua (This set has Suicune TMTA one of the most beauties Exs ever released imho!)
Edit: there was a poll a couple months ago and Ex TRR got the lead if im not mistaken!
I’ve been really drawn to Team Rocket Returns and EX Sandstorm lately. The desert theme in Sandstorm is really appealing to me. I like when the theme of a set is clear within the artworks. That’s one of the reasons I like neo discovery so much because it portrays a Mid-South America kind of vibe.
I also love TMTA, but the artwork on some cards is a bit too CGI-y for my tastes. I really like the dog exs, though, especially Suicune, as well as the holo rares because of the TRR-feel. Really underrated set overall; probably because it’s a bit overshadowed by TRR, IMO.