Wanted to update you on my Safari adventures as well! I ended up with 11 Gothorita so far: five had Frisk, three Competitive, and three the desired Shadow Tag. The second of the last group turned out the most suitable of those, with the best IVs overall IMO (none more than three sadly), and I selected at least one in each other group. I've since traded five away and received, in order, a Spanish Fletchling (I now have two of those), an Impish "Run Away" Eevee with Helping Hand/Growl/Tackle/Tail Whip, a Lv.4 Pansage (freshly caught), a Zorua with Embargo (FYI I plan to farm the WT myself with a bunch of Feint Attack/Foul Play/Night Daze Zorua, possibly with Enigma Berries if I can get one to start growing with!), and - the best of the group IMO - a Mudkip (with Mud Bomb), saving me one starter to have to import!
I have to hatch 13 unknown mystery eggs in Black; I know why I kept them, in fact, as I helped someone else here a year ago with creating a mystery team for a new runthrough of a Gen. V game. Check his profile, his completed team from that is visible there. They came from groups of eggs all from one generation; two from I, two from II, one from III, and a guaranteed Phione from IV. I no longer have the stats, but I hatched them all without saving and grabbed their data so I could tell him exactly what he had before he even hatched them (though I didn't spoil the fun, I sent the data after he knew what he had). I know I have a few good Pokémon in there, and I covered every single type at least once and no more than twice among the 15 (including a second part-Water type since I guaranteed a Phione, which is that type). Once I rediscover what they are, if you're missing any, I can list them for you and you can see if any interest you. :) (I think I have two Phione, and I can trade you one for an Enigma Berry holder once you get some grown if you'd like. ;) )