If they are Rare, they are not common. If you mean which are more common halves or dollars the answer is dollars, or which have more rare dates halves or dollars then the answer is halves.
What do you mean find? And from where? I am able to obtain the same amount of halves as dollars whenever necessary. Is this unusual? :scratch:
I think it is a lot harder to find rare dollarrs. I mean, you just can't go into a bank and order rolls of big dollars. You would be very hard pressed to ever find a silver dollar in a bank. I'm not saying it doesn't happen, but it is very very rare. You would either ask for small dollar rolls or Ike dollars. you may find some 'no edge letetring' errors in small dollars, but thats about it. So, for silver, you really need to ask for half, quarters or dime rolls.
Are you talking about at banks? Then I'd say small dollars are more common than halves, since halves get taken more. Large dollars are more rare to find at banks than halves though.
Halves can be found at banks more so than dollars as more people inquire at banks for rolls of dollars more than halves. One the other turn; however, most B&M shops have more dollars, in $100 bags, than rolled halves. I have no preference one way or the other.
OK that explains it a lot better. You aren't looking for rare coins at all, just roll searching for silver. In that case you will find a lot more silver in half dollar rolls than dollar rolls because better than 99% of all the dollar rolls you will get will be the small size dollars, none of which were ever struck in silver. Of the other >1% of rolls, 99% or more of those will be Ike dollars and almost none of those were struck in silver. So maybe .01% of all the dollar rolls will have any silver in it or one roll out of a thousand rolls. You will do much better with half dollars.
The answer would have to be halves, but the word was out years ago on the halves. Silver halves aren't showing up when roll searching like they did five years ago. Now, if you know of a bank that has rolls of Ikes, let me know! I've never seen it in recent history.