Well I finally caught a shiny in the wild a couple of weeks ago - a Gloom, found whilst I was looking for something with a lower encounter rate in Route 48. Kinda perfect as should I use it, I'll evolve it into a Vileplume as I really like the shiny colouration yet don't enjoy the normal look.
In the same save I had a lot of fun in and around Azalea Town with Togepi's Metronome (I may have posted about this, I forget). Firstly against a hiker in Union Cave it faced up to his Rock-type Pokémon with Mud Sport, Ember, the charging phase of Razor Wind then got KO'd. Then against Bugsy's Scyther, who had a 2HKO on my entire team, it whipped out Sonicboom - a great attack at that level - which used up Scyther's Sitrus Berry, paving the way for the eventual victory. Finally, a couple of lucky hits had Silver putting me in a tricky situation, the little egg whipped out Discharge (with Serene Grace getting the Paralysis) and Hyper Beam to eviscerate his Croconaw!
After conquering Kanto I got really into EV-training too. I found that Lt. Surge's traded Pikachu had a couple of 31 IVs, then Thiefed a Light Ball off a wild one to breed my own Volt Tackle-possessing Pikachu with great iVs whom I EV-trained then used to destroy Silver - my dual screens Uxie U-turning him in safely, allowing a Nasty Plot boost before sweeping the entire team. Steven's traded Beldum had top IVs too, so its been EV-trained.