Series A Funding because by Series B, the company is relatively stable and more proven. Series A financing s more necessary for growth.
Without "A" there is no "B"
First to get paid back, largest return (and risk) on investment
For as much as B is important remember because you have your "foundation" It is easier to come by based on loans, investors etc.
Having a large lot in the A area allows you to make sure your "foundation" is as strong as possible, maybe even allowing some of the funds from A to move into the B area. Or as I said making your "foundation" that much stronger so B funds are even easier to procure.
vote of confidence by savvy investors. May lead to a Series B.
Allow you to have influence on early stage development and greater rewards at IPO or sale of company.
Without it, you are not able to get to B. Also, if you grab strong group of investors, the B will come much easier with much smaller loss of equity.
Series A Funding is more preferable because it establishes capital to grow a business. It is the foundation of the investment portion and the beginning of an accelerated growth opportunity. Through a strong management team and marketing strategy, this capital can sprout success.
first in in line to recoup investiment
It's the initial large sum of investment that you are going to take. A series B means you need more money and will give up more of your company.