I have nothing against Mr. Krishna. But like u asked questions, I too have have some about him. How do u praise a person who like to tease girls, which is morally bad, who use to their clothes from the river bed while they were taking bath. These are not my words, for ur info. Just tell me whether they are true or not. Besides, u said he is a messenger, I think he might, but some of the attributes are not suitable for a messenger from god, which I mentioned above. Quran, says there were more that 125000 messengers sent on the face of the earth, to all the nations & tribes. But only few are mentioned by name. I am not denying the possibilty, but I can't accept either, that Ram, Buddha, and many other spiritual personalities, may be the messengers from Allah. I choose not to say against them.
India has a history of Hero worshipping, not late, but recently I have seen on TV, that some group has built a temple & worshipping to Mr. Amitabh Bachchan. May be after few centuries, he will also be called as one among god and get approval among the other belivers of idol worshippers. I can only warn you to come on straight path, worship only one, u call him by any name, but not a form.