Tell us about yourself!
Since you have no idea about guitars I'll teach you a thing: heavy guitars make a sustained, long sound while the light ones give a shorter sound. If you play fast (like in flamenco e.g.) you would like your guitar as light as possible. Sound is more complex than long or short, so comparing the sound of two guitars as heavy and light is the stupidest thing you could have made. Everybody knows to buy used expensive guitars for half the price. Except for that: DON"T A BELIEVE A THING THIS MORON TEACHES YOU OR YOU'LL REGRET!