zomg i lovelovelove taping bars. its pretty much my favorite thing about building a bike i have no clue why. i have also rererereretaped bars with tape, especially cloth tape. or tape without any sticky backing.
generally for aesthetically pleasingness on tape i make sure the space between wraps is exactly the same, although that changes around bends.
tight even pull is ideal, but not extremely tight. kind of also depends on what kind of tape....i find with cloth tape super tight is nice, with cork medium tight is good, although sometimes cork tape is nice when its wrapped a teeny tad loose (but still tight) so its a bit thicker and squishier.
oh wait im not scrod mahbad