Season 2 has been loving amazing, I really should go back to watch S1 so I can see if it's better or not.
Personally, I don't like to compare the two. I believe Season One will always have that nostalgic feel which gives it the advantage over all other seasons and thus it will "
feel" the best.
Season Two has changed various parts of the story/plot itself, this is really my only real complaint about it. It has had great episodes, good episodes, bad episodes and maybe one that I flat-out hated (I'll have to see later on). Episode-wise, they've done a fine job. Story-wise, they've been entertaining. The overall plot, personally, I think was slashed.
It has been a fun season, many memorable moments and episodes I wouldn't want to lose. It's also coming to a close soon, and then we'll be on the several-month waiting line for Season Three. And then I'll re-watch the entire series from beginning to end!