Is it easier for a LLC or a Coporation to get a business loan?

Yes, it is easier for a LLC or a corporation to get a loan if it is an established business and has assets which can be used as a collateral. Most of the banks prefer to work with businesses which have a more legal structure than a sole propretier because this way all the financial records are maintained separately than business owners personal records. However, if it is a new business then these lenders may require you to personally be a co-signer for the loan. In that case irrespective of your legal structure you will have the same level of difficulty to get a loan.