Sometimes still farm there also..
To gain back my lost confident, depress, heart broken, saddingness, 13th floor.... Anyway
Yes still farm there... 

i found set in act 1 daily

Same case for me too, always short of Key of Hate. Reason being the warden is hard to find (he sumtime hide secluded spot/corner) and Oasis is pretty large n not straight forward to explore. Surplus of Key of Terror since usually do act3 run ending with warden (who is the easiest to find). While Key of Des also have extra due to every time getting stack for ubers will always look for warden as well.

On topic: every now n then i still do act1 farm (even whimsey) bcos the 1st n only item i was able to sell on GAH for 50M+ was found in Act1: Hall of Agony 2 .. a 94% CHD +660 Loh Shen Long Fist of Legend. That sale enabled me to gear up my WD (previously i was using a DH n struggling to do gear upgrades).

I also farm in act 1, poor equipped barbs and not strong enough to act 2 or 3. cant even get act two through by myself. have to relies on public game.. just have to farm gold first then only see what can I buy from action house then..

but mob density wise, act 3 wins hands down.