hey just my $0.05 , i would not even look at the magna what ever you save on cost you will send in fuel !!! ever wonder why the wreckers yards are full of them ? its not because they were the best car on the road ! so that makes it up to accord vs camry . well it depends what your after ,accord gets more power and way nicer looks very well made too, and good list of features , and camry has less power and a little better fuel economy and plain looks and most are very basic . as you said its a daily beater . if any of the accord pluses appeal to you then its the winner ,but if you truly don't care and cheapest fuel wins out with the camry .
my personal opinion is that the accord is the pick of the two and that is what i would buy myself
all the best mate!