Your cue stick is your weapon. To be honest, there are hustlers and pool sharks who can play and beat almost anybody with any stick, but even they would play their best game if they use their personal cue stick.
Cue sticks come in a variety of types and sizes, suitable for people of all ages. Technologically, they are not at all the same of the sticks of the 60s or even 80s. The pool sticks of today have technologies which reduce and even nullify the squirt effect, are strong and durable, and some even remain protected from temperature changes, even if the conditions are harsh.
There are basically two types of cue sticks. Ones made for lighter balls, and ones made for heavier balls.
If you play with a snooker stick on a 10 feet pool table which uses heavy balls, you are bound to miscue and mis-hit at times when you have to use extreme draw, follow, side, speed etc. It might even break.
If you play with a heavy cue stick on a snooker table which uses lighter balls or on the english pool table, then you would notice something strange, that the heavier cue stick would produce a very high squirt effect and hence you won't be able to make some shots which you could normally at ease.
That was one important thing to consider, if you didn't already know. There are other important factors, such as the quality of ash, maple etc.
Another thing to know is that many of these sticks can come in up to 3 varieties. One piece or single cue stick, a two piece cue stick, and a three quarter two piece cue stick.
You can check out some pages I made about cue sticks on the following links.