English is not the only language in the world you know. "Info" means nothing to the chinese, japanese, india, and so on... .COM on the other hand is popular because of it's age. (25 years of internet = 25 years years of .COM)
Ranking depends on the off site and on site factors. That does not depend on domain name extension. ie quality site with no errors original content proper keywords and descriptions no bad neighbourhoods quality related links no black hat (used by most with .info mainly because they either dont know how to properly do it or cant afford to pay someone or just want that quick rank google penalise and then oh its because its a .info ?) yes i have seen this around thats why i have mentioned it and on looking into the domain have found out why its not ranking and its because google have banned them for their actions. anyone can do seo work on a site but to do it right takes a lot of knowledge its not just about putting up a few links .info is no good for seo ? erm no its the illinformed novices at seo that are no good imo
If i had the power to create gTLDs, it would be .earth .mars .moon .space and .universe Unfortunately E.Ts wound't understand the language.