10K Hatching question

Waiting does nothing but delay the result of whatever you're hatching. If you wait to get your 6-8 10km eggs it's not gonna increase the chances of getting a specific pokemon.

Some people like the feeling of having a bunch pop at once, personally I want them done so I can start using my new pokemon / crying over my onyx/scyther/pinsir.

Related to this question I really wonder whether all Pokemon have the same hatch chance.

I am level 32 and never hatched a Snorlax or a Lapras yet. However, the number of hatched 10k eggs is too low to tell: since I started recording my hatches, I only got 12 10k eggs.
Neither did I get Omanyte or Kabuto (still missing Kabutops and Omastar in Pokedex)
nor Snorlax or Lapras.
The best I got was a 87%IV Dratini (which evolved to a Dragonite with bad moveset though)

Doesn't matter, you have equal chance of hatching one of them whether you hatch all of them at once or just one by one, especially since the Pokémon inside the egg is determined when you pick up the egg instead of when you hatch it.

I'm collecting the 10km eggs. So I was lucky when I was able to hach 6 10km eggs on the helloween event.
Maybe there will come a similar event on thanks giving or on christmas time.

Id hatch them right away your not guaranteed snorlax, lapras, or dratini right away.