Tricky as it might be, I would be waiting the extra year if you can. As a teacher, we see the problems kids have from starting too early but there are not often issues with them starting later. Also keep in mind kids ages are spread from 4.5 up to nearly 6 when they start school and their maturity at nearly 6 can be younger than the ones who are 4.5 but often it can catch up with them later. It's ridiculous how the system works, would be nice for all the states to line up but chances are slim. Good luck deciding - it is really tough.
Just as an aside, this year I have gone back to working full time and DH is working bits and pieces and SAHD'ing it and he is LOVING it and loving the time with the kids. I miss them quite a bit, and miss seeing special days at school and kinder but know I can spend the holidays with them so that is the trade off we have here. It can work really well xxx
