compare with shares and bonds

I assume you are comparing shares with full voting rights with typical bonds,
as there are too many types of shares(preferred share) and bonds(e.g. zero coupon bond/convertible bonds), many are a hybrid of shares and bonds

from the company's point of view, the adv of issuing shares over bonds:
1. very often the company has to pay interests to the bond holders periodically, for shares, it is not a must to pay dividends to shareholders(even if the company earns huge profit, it can retain it), thus, there's no need to reserve cash for interest payments
2. when the bond is due, the company has to pay back the face value of the bond, which could cause a cash flow problem if the company does not have a reserve at the time
3. bonds are regarded as debt/liability, if the company need to borrow further from others, it might need to pay higher interest as it now has a higher debt ratio.
4. as interest rates are fixed for bonds, the company has to bear the risk that the market interest rate drops lower than that of the bond issued.


from the company's point of view, the adv of issuing bonds over shares:
1. the cost of issuing bonds is probably less than that of shares, such as meeting disclosure regulations (really depends on the size of the company)
2. owner of the company does not need to give away their control or share of profits by issuing bonds
3. interest payments on bonds are usually tax-deductible, while dividends are not.