OK r/nuzlocke - help me out

Alright, so I'm doing an Emerandom right now but the Emerald storyline is boring me and for some reason the randomness makes me not really care about my Pokemon. I just threw a Shuppet to the wolves when I found out I didn't really like her stats and I let my Tauros (starter) die without a second thought, even though I totally could have prevented it. So I'm going back to non-hacks, specifically Heart Gold, that way I can have the connection I had in my first LeafGreen run and my Platinum run (but the save file died :'( RIP everyone). But I want to switch up the rules, and so I'm going to have you do something for me.

I need you guys to vote on one Pokemon that I MUST catch and MUST keep until I finish or it dies. It will count as the catch for whichever route I catch it on, and I'll consider naming it something you all come with too.

So I want you to pick three Pokemon that you want me to train. First come, first serve - they must be available on HeartGold, no legendaries or weird shit and I have to be able to catch it naturally since I'll be playing on a ROM. Tell me the Pokemon, the route I'd catch it on and an optional nickname.

After the three have been decided I'll post again asking for a vote - the most votes wins.

So have at me!

Edit: Here are the three Pokemon

• Dunsparce in Dark Cave
• Farfetch'd on Route 38 (because it's the first one) named Jack (the ripper?)
• Wobuffet from the Safari Zone.