That is the sequence that I use - it is listed in a couple of references that I have. On the fronts, I usually do the inner first if there are two bleeders (depends on whether you have single piston sliding caliper or 2 piston fixed caliper).

As for the suction on removal of the MC, there should not be any! There is a seal on the pushrod that emerges from the booster that should seal any vacuum in the chamber. If not, then the seal is faulty. Note that there should be a vent hole or depression on the booster so that the area between the MC and the booster is vented to atmosphere. This hole will also drain any brake fluid that leaks from the MC rear seal - UNLESS the booster seal is leaking and the vacuum sucks it into to booster vacuum reservoir. This will eventually destroy the booster, so make sure the vent/drain is clear and the booster seal is in good condition - a leak here is a vacuum leak to the engine and it will prevent the retention of vacuum for brake applications after the engine is shut off or dies (safety feature - you should get about 5 power brake applications AFTER the engine is shut off before you run out of vacuum in the booster).