Antenna ?

been looking at magnetic mount antennas. can someone explain the difference in wattage on antennas?

Is that just a wattage rating per say? Assuming it means an antenna is capable of handling a X amnt of watts...

For instance, is a wilson 5000 better than lil' will when using a cobra 29 ?

Also seen some talk about hustler.......i think the one i seen was a 100w antenna.

TIA

Antenna ?