Ok, most of the ladies here will tell you not to vax at all. So listen to what they have to say too.
Personally, I'd like to say I wouldn't vax #2 (ds was vaxed on schedule until 12 mos, when I wised up- and I won't be getting him anymore- at least not for a long time). But when it comes down to it, some of the diseases honestly do scare me.
The ones I wouldn't do are Hep B, CP because they are unnecessary and the chance of your dc getting the disease (in the case of hep b) or having complications (in the case of cp) is lower than the chance of a moderate or severe reaction to the vax. I wouldn't do Polio unless polio came back to the US- then I might consider it.
MMR- I'd probably get measles at 2 years or later (not mmr, just measles). I know this is probably uncommon to hear here, but the risks of measles kinda scare me. Maybe someone here can tell me (and you) why it shouldn't. It has become quite uncommon in the US though. Then if dc hadn't gotten mumps or rubella, I'd get them later (maybe 11 or so?) Mumps is almost always a mild disease in those under 14 or so. and rubella is only dangerous to pg women.
HIB- as long as dc would be breastfed and not in daycare, I don't know if I'd do it. But if I were to do it (because hib does kinda scare me too), it wouldn't be until 15 mos (if they get it at 15 mos, they only need 1 dose, as compared to 4 doses if they get it on schedule). But then again, the risk of getting HIB goes down greatly with age, with it being relatively uncommon after 2 yrs old. DS has had 3 doses, and I'm stopping there.
DTaP- I don't know about this one. But if I DID decide that it was worth it, I'd definitely wait to start until after 1 yo (probably 2). And I'd get 3 doses instead of the recommended 4 (they recommend 5, but the 5th is a booster at 4-6yrs). In cdc effectiveness studies, they consider those with 3 doses to be vaccinated- and you know they want it to show as effective as possible! And the reactions after the 4th and 5th doses are more likely to be worse than the first 3. Like I said, that's IF I decided it was worth it. DS has had 3 doses, and I'm stopping there.
Prevnar- not really sure, because I haven't researched it much, because he's had all the recommended doses. But I know for sure that I would NOT have done it on schedule at all. Next time I'll at least wait until dc is over 1 yr then who knows.
My mind may change by then, but if it changes it will be towards getting fewer, or no, vaxes. I'm not quite there yet, but I'm very open to the possibility.
I gg- ds needs me

eta- I was wrong about the risks of measles.