I really surprised to know that fact there is 700 altcoins have been created until this day. But I was more surprised when you ask someone to analyze all that 700 coin and recap it and also write on this thread. Honestly dude, you don't need to analyze all that 700 coins to know how good they are or to know which altcoins that good to trade. Just look at some coin that have age more than 2 years, and see which coins that can be trade in more than 5 exchangers. After you do that, then you will see which coins that have good future and best to trade or save.
Besides it is not like anyone here has the money to invest in 700 different coins, and even if someone did then it will be a waste of time to split yourself that thin, since it will be better to concentrate on just 5 different coins.