There are a couple reasons Tick charts are really great.
One is that when the market is slow, you don't get a bunch of flat minutes. What happens is you get more minutes compressed in to each bar. If nobody trades for five minutes, you don't get five little doji's, but the bar waits until 133 (or whatever) trades have gone by and then starts a new one.
The other great thing about tick charts is that you can see all the night's action in a glance. Set your tick chart (TradeStation) to @ES (not @ES.D) and you can see the night session in a few bars. Sometimes important highs and lo's are put in at that time and if you are relying on only intraday charts, you miss seeing 'em.
BTW, Breakout, Like I suggested to Vision, why don't use Fib. numbers for your tick charts of the ES, 144, 233, 610 etc. Check it out and see if you find it helpful.
Cheer,
kp