How about learning something about evolution and the way it works before you try to critique it? Survival of the fittest does not refer to what *you* think is most fit, but to whatever best enables survival of the species in question. If a feather is such a complicated structure that it couldn't possibly have evolved, then how do you explain that a single-cell zygote without any structure becomes, within weeks, a fully formed bird with feathers?
There were, FYI, several species of feathered dinosaurs besides birds. Here is a nice article, complete with fossil pictures and schematics of many feather types that evolved. It is apparently course literature for an upper level university biology class, but I think it is readable.
Evolution is a brain-dead ideological doctrine which teaches that your neighbor is a meat byproduct of random events and processes. It was the philosophical cornerstone of the Nazi and Communist systems and the various eugenics programs and arms races which led to the two world wars.
Is there something else I need to know about it?