Below I will list the Pros and Cons of each business entity selection: 

C-Corp

Pros: 

• Offers the most shareholder liability protection
• All debts, expenses, tax liabilities are completely separate from shareholders
• Used for business with more than 100 shareholders
• Ability to issue multiple classes of stock 
• Ability to off company public offerings and obtain venture capital for growth

Cons:  

• Requires regular board of directors' meetings, detailed documentation, 
• Form 940 Quarterly tax filings, form 941 annual tax filings and form 1120 annual tax filings are required
• Shareholders must file separate income tax returns which leads to double taxation
• The company is taxed at the corporate tax rate

S-Corp

Pros: 

• Shareholder liability protection is similar to C-Corp
• Pass -through entity so avoids the possibility of double taxation
• All debts, expenses, tax liabilities are flowed through to shareholders personal tax return therefore the tax rate is the personal income rate rather than the corporate tax rate. 
• Shareholders are not subject to self-employment tax reinvested in the company. They are only subject to self employment tax on wages received by the company

Cons:

• Requires a board of directors and company officers
• Form 1120 is filed annually even though the tax liability is calculated from the shareholder personal tax return
• Must Elect C-Corp initially at Company formation and later complete IRS Form 2553
• This entity selection can only be used for up to 100 Shareholders
• Owners must receive payments of dividends or wages directly from the Company to maintain S-Corp status
• Can only issue one class of stock

LLC

Pros: 

• Provides more flexibility when filing tax returns, you can choose to file as a sole proprietor (Single member LLC) or as a partnership (multiple member LLC)
• Provides personal protection for shareholders
• Pass through entity to avoid corporate tax rates
• No board of directors required

Cons:

• Does not provide as much shareholder liability protection as C-Corp or S-Corps do
• Members are personally responsible for debts incurred by the business 
• There are funding and growth challenges, LLC cannot issue stock
• LLCs are considered higher risk borrowers by lenders
• Shareholders are subject to self-employment tax