I actually find myself playing my Pearl version more often than not... I just ordered a new copy of SS, and I'm excited to play it! c: I love the Pokeradar on Pearl, I have finally figured out how to chain well recently and I've scored myself 10 shinies.
I'm getting shinies for my team just because I love the SS version so much. So no, it is not unappreciated by me. Perhaps I am biased, but I've been a Pokemon fan since 1st grade - meaning about 12~13 years now, and I've played all the games. A lot of people do prefer the newer version, maybe because its sleeker. HG/SS will probably always be my favorites.
Though, B/W does offer the best movesets, I think, especially due to Hidden Abilities. I am really excited to save up and get W2 and explore the grottos - Magic bounce Espeon, here I come!
Gen 3 will always hold a special place in my heart; it was the versions I played with my friends when we had the "free day" to bring our Gameboys to school.
We'd trade pokemon and hang out, all talking about what we had accomplished so far! Call us geeks, but we all enjoyed it. So of course, I will always love Gen 3. I am hoping so much for a remake; I tried to play Sapphire last night, but the interface, after playing the DS versions for so long, is so foreign and awkward to me. Everything is too pixelated and the visuals don't really appeal to me anymore. It's nostalgia and I love it for that, but I probably won't play it anymore unless I want to do the Nuzlocke challenge, which I would probably much rather do on FireRed.
Either way, I love all the versions for different reasons. I don't hate the new generations, the old generations, the middling generations - I love SOMETHING about all of them. One thing I love doing is loading my GBA characters onto my XD or Collo.
Always fun to see your well-loved Pokemon in 3D on your TV! Reminds me I should get a new XD disc and invest in my pokemon more on the GBA versions, hehe.