I've heard about those Boomburst Taillows, but I still got an interesting one early that had Mirror Move. I think another find I had was a Spinda with Water Pulse, which kinda surprised me because I never even knew they could learn it but then again those things have a tendency to learn all these confusion-based moves. I think I also once found a Contrary Spinda, sadly I didn't catch it but it was cool though.
But Huge Power is the good ability on Marill... but I did find a few with Sap Sipper once. The most interesting part definitely has to be the moves, like Mud Bomb on the Skitty or the tutorial Poochyena with the elemental fangs.
dexnav is aweeesome. That's a pretty good Marill despite the ability! Most of my finds haven't been too good and I can't remember the few good ones I did get, but I really want to dexnav chain for a shiny male Ralts. </3
Oh god I'm so addicted to the DexNav. I think one of the really good captures I got out of it lately was a nice 3-star potential Huge Power Marill. Doesn't have the best nature out there but he was definitely something. I even once got a Pelipper with a Lucky Egg, he might come in handy if I need it. Another one was a Skitty with Mud Bomb who I'm training for Cuteness Contests.
I also came so close to getting a Surskit with Fell Stinger but some random Zigzagoon interrupted me. I do wonder what your best finds were?