I've only gotten 5IV Pokemon so far. I'm amazed at the people who keep trying until they have 6 perfect IVs. I've never gone for 6 perfect IVs, though, I just don't see the point.
a full sp. attack tyrantrum would look funny (and here i got why its only egg move is draco meteor XD)Getting a 6IV Pokémon is mostly luck for me. In some cases 6IV Pokémon are worse than 5IV ones (for special attackers, you want the attack to be as low as possible to lower the damage you take when you're confused). However, when breeding to 5IV Pokémon to get a shiny with the Masuda Method, 6IV Pokémon are bound to show up. I now have 3 6IV Tyrunt, without those being my goal.