I went through the list of episode quote titles, and here are my favorites:
02.02 - Help Me, I'm American!
02.05 - Welcome To The World of Being Human
02.11 - Follow That Plane
03.02 - This Seems Like The Path Straight to Hell
03.08 - This Is More Important Than Your Pants Falling Down
04.10 - That's Me. That's My Face. Just Hit My Face. Hit My Face!
05.08 - I'm Going to Jail
05.11 - It's Okay, Run Them Over!
05.12 - You've Just Made Me a Millionaire
06.08 - One of You, I'm Gonna Break in Half
06.12 - You Deal With This Before I Hyperventilate
07.02 - The Whole Country Hates Me
07.05 - I've Been Wanting a Face-lift For a Long Time
07.09 - We Have a Bad Elephant
08.05 - We're Getting Out of the Country, Girls
08.06 - I'm Sick of Doing Stuff I Can't Do
08.07 - You Look Ridiculous
09.08 - Here Comes the Bedouin
10.10 - Lookin' Like a Blue-Haired Lady on a Sunday Drive
10.11 - We Just Won't Die, Like Roaches
10.13 - Say Your Deepest Prayers Ever!
11.06 - We're Going to Trade You For Food Now
11.10 - Good Doing Business With You
12.03 - Please, Lord, Give Me Milk
12.05 - We Really Burned Bridges, For Sure
12.07 - This is Forever, Now
13.06 - Please Hold While I Singe My Skull
14.02 - Your Target is Your Partner's Face
14.09 - Our Parents Will Cry Themselves to Death
14.12 - This is How You Lose a Million Dollars
15.01 - They Thought Godzilla Was Walking Down the Street
15.06 - This Is Not My Finest Hour
15.10 - It Starts With an 'F', That's All I'm Saying
16.04 - We Are No Longer in the Bible Belt
16.09 - Dumb Did Us In
17.03 - In Phil We Trust
17.05 - Tastes Like a Million Dollars
17.12 - Hi. I'm Sorry. I'm in a Race
18.04 - This is the Most Stupid Day Ever
18.09 - We're Good American People
20.05 - Uglier Than a Mud Rail Fence
20.09 - Bollywood Travolta
21.08 - We Was Robbed
23.09 - Part Like the Red Sea
24.10 - Bull Down
The earlier episode titles were more plot relevant or just comes from funny moments. The current quotes are leaning more on vaguely competitive quotes. They are also a lot shorter at just around 3-4 words so it doesn't really resonates or make a mark (which partly leads to the 'vaguely competitive' thing). Aside from the current trend of episode titles, I also didn't like season 4's line up of whole sentences...