I personally have a 200 amp service. I am not sure what new home being built are getting but I would say 200 amp would be plenty. If you call around to a few electrical companies and ask what is normal you can find out what people in your area are getting.
My HomepageYou have to do a load calculation. If you want to send me a list of every appliance ( it may take a few contacts to get all of the right ampacities) + the homes square footage, heat method, hot water and etc. I will help you with that. Think about the future, Do you ever want a HOT TUB? ELECTRIC COOK TOP? DRYER? DOUBLE OVENS? WELDERS, KILNS Or anything like that