If it has seeds, then the potency (THC content) drops to about 20% of the original, if i is manufactured without seeds through female clones it is called sinsemilia otherwise it is SHIT

If it has leaves, or savita it is shit too, cuz it will hurt and burn your lungs worse than cigarettes, and will only give you a headache, leaves are grinded in so there

As for the smell, some people like the smell when they smoke it, you know? The aroma is good and all, but ... A strong stinky smell does not necesarily mean it is potent and will fuck you up, skunk stinks that's why it is called skunk but it isn't the strongest strain out there

Hope that helps

Peace