Which level 5 monster is the best?

Heroes is a game where very little is straightforward!

I agree, which is why it's best not to be too sure. A lot depends on the circumstances and other factors. I think if everything was constant and indisputable, the game would quickly lose its appeal.

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maybe he's not just evaluating based on strength?... they look much better, for example) IMHO... and they're second in strength, and morale helps too....

it's a shame he didn't justify his choice, though.

Well, if it's about appearance, I won't argue - it's a matter of personal preference.