Who lights brighter bulb in a parallel circuit?

Yes, since each light would get the full voltage. Be careful if you actually carry out this experiment, that the lights don't get too much voltage. If the voltage is (for example) 110 Volts, and the lights are built for 110 Volts, you would have no problem; in a series circuit they would simply get dimmer.

because the wires are together

Not necessarily. It depends upon the voltage ratings of the lamps, and whether the voltage across each lamp matches their voltage rating.