Umm...I'm probably the only person out there who actually *likes* this part but I'm gonna go ahead anyway...I actually liked the clone arc - I groaned along with everybody else when it was first shown, but it all had a lot of angst in it, which I love and such a perfect WAFFy ending! It was one of my favourite parts of S3, but I have to admit that I voted for S1, mainly because of the Lex thing. I hated him just as much as the next person, but he made S1 great - every series needs an evil villian and he was the one to beat all others
I suspect that part of why I voted for S1 was because most of my favourite episodes are in it - Pilot, Honeymoon in Metropolis, PML, TGGGOH and of course, BaTP/HoL which are my all-time favourite eps - ever :p
S2 had some great eps. in it as well - The Prankster, WWW and ATAI being the paramount ones in my mind.
However, I didnt particularly like S3 - Ordinary People = uck, Contact = OMG and *especially* When Irish Eyes are Killing - might be just me, but being Irish myself, that ep. had some very insulting blows to Irish people.

I'd like to take this moment in time to verify that
#1 - Neither I nor any of my friends think that we're ancient Druids
#2 - Neither I nor any of my friends would attempt to sacrifice the one we love
#3 - Neither I nor any of my friends think we have a leprechan named Erin that sits on our shoulder and gives us advice
#4 - Neither I nor any of my friends eat truffles on a picnic <eg>
I would also like to say that neither I nor any of my friends are in A Hospital for the Criminally Insane but ***cough*** that cannot be confirmed at the present time

)