1. Team - developers team must be strong
2. Support - Team should respond to any question in professional manner
3. Buzz - is there is a lot of information on Internet? YouTube reviews?
4. Realistic plans, road map and most important if they are launched successfully
5. How good was distribution
6. Check BitcoinTalk forum what other user think about it
7. Coin/Token specifications: Total supply, Price, Daily Volume
8. Exchanges: Good coin always will be listed on good Exchange