ColdCoffee is my favourite Jun-ship apart from Hyperbishie, but that's me x Jun so.... Yes, you cannot deny the one-sided canon-ness on Jun's part. I loved their interaction in DP163. Jun was like: "OMG OMG OMG OMG LET'S BATTLE!" and Shinji was like "Who are you...?" XDDD
Takeshi's okay, but the whole falling in love with every girl he meets has gotten cliche and annoying after a while. He reminds me of Bingo Little from Jeeves & Wooster, lol.