Here is something I found the other day that has to do with DC vs. Marvel, not in the which is better sense, but the main differences between the two. It is basically what I have been saying all along about how Marvel does a better job with developing their characters. I have not read enough DC events to agree but the articles says that DC focuses more on the big epic story. Again I am not that familiar with the DC universe so I cannot comment on that. Although I would say that to me having read only a hand full of big events I do not necessarily agree with the totality of the statement.
Either way you lean (Marvel or DC) both have their advantages and disadvantages. Check out the article below, it is very short if you have a second check it out.