I love FRLG, the music is great, the sprites are very nice considering how bad the other games in gen 3 looked and it has an awesome new set of islands to explore.
While I despise the "dated" meme, FRLG genuinely feel fresh playing them 12 years after. They just look and feel nice.
Also like how Sevii Islands was like an apology for abandoning the majority of gen 2 mons in Ruby and Sapphire.
http://www.youtube.com/watch?v=RQxXjR0bEMIEasily my favourite gen 3 game, though I like other entries in the franchise better.