What impacts valuation of a company more; is it dividends or is it buyback of shares?

As a shareholder, what should I actually prefer; dividends declared by the company or share buybacks? What is more profitable for investors?

What is preferable for shareholders; dividends or buyback of shares?

What are the principal advantages of the reverse book building system for buybacks and for delisting of shares?

When I buy shares and become a shareholder of a company, what are my rights as an investor?

Wipro has announced buyback of shares. Is the right time to buy more or sell?

I have some old shares in my portfolio like Bajaj Hindustan, JP Power, Jaypee Infra, Rel Power, Unitech. Valuation of all of it is very low and that is the reason I kept them for so long. Appreciate a guidance on whether to sell or wait how long?

I hold shares of Satin Creditcare and I understand the company will convert into a Small Finance Bank. What does it hold for the stock?

I had bought 500 shares of Jain Irrigation @ 106 around 1 year back. The stock was supposed to be a very attractive pick at that point of time, but it has only gone downhill. What is the prospect for this company?

Is there possiblity revival of Cox & Kings? Shall I hold or sell the shares of that company and its subsidiary company Cox & Kings Finance?

Do buybacks really add value to shareholders and how do they impact the valuations or P/E ratio of the companies?