Help!!! First grow

need help thinking of doing a my first grow in a tent just want to do about two plants to start with someone told me a led light is cheaper in electrick and faster the grow plants.

hps is better than led.....the only way id ever grow with LED is if I was strapped for space and cash for the electric bill....all the videos ive seen LEDs are not that good but thats my opinion cuz ive never used them. only MH/HPS and CFLs and I would personally choose CFLs over LED

how do you stop the the room from stincking of weed lol sorry just new to this.