Pretty happy with the last patch, indirectly buffed odd ways I play certain champions.
I generally built glass-canon AD Rengar, so nerfing tank and AP Rengar yet again while buffing Savage as they did recently helps overall.
The Evelynn nerf/buff is uber great in my opinion as well. Evelynns been one of my favorite champions even before her full rework and honestly her ult was a little overdoing it. Everything else was fine, but it's such a large percent of max health. I generally build strictly AD Evelynn so the buffs to her AD ratios on Hate Spike and Ravage ultimately means the way I play her just got a mini-buff without hindering it too much, yayz.
Lee Sin changes are unsurprising. Riot has wanted to slow low level cc ganks, even with the Season 3 jungle Lee Sin is still great at this.
It's funny because actually, the biggest change I was excited for that they didn't mention was the Syndra buff. Syndra was already a nuking machine but buffing her just makes me want to play her more, it feels somewhat overkill to the raw damage she can do.