OK..I'll chime-in.
The part about clones possibly having bugs or other problems..I think what was meant was that when you buy clones..for example from a cc club, the clones could already be infested. You hear a lot of horror stories from people who just bought clones from a club or friend only to find that they also brought with them a nasty mite infestation.
The part about clones losing "potency"..well..."studies show that"..if you take a clone off a mother and grow that..then take a clone off that and grow it..then clone that one and grow the clone and take a cutting off that one and make it your mother, your plants will lose vigor. Don't know how many "generations" it takes for problems to start to manifest but..I've never seen it, because I don't do that.
OK now..clones, seeds or fem seeds...
If you start from seed..say regular non-femenized ones, say 10 of them and you plant them all. You have to let them grow for, say a month before you can take a cutting from each one. You SHOULD take two just in case. To save time, rather than rooting those cuts and flowering them, just label which of the 10 seed plants your cuttings came from and put the seedplants into flower while the cuttings root.
The ONLY way you can tell if a plant is male or female is to look at it's flowers.
So..when you see male flowers, if you don't want any pollen for breeding or storing, kill the male plants and the cuttings you took from them.
Now, as you flower the female plants you grew from seed, take note of which grows the most vigorously, stretches the amount you want, is easiest to grow-most forgiving, flowers fastest and or is the best yielder and/or potent/tasty...whatever characteristic you prefer.
Meanwhile, your two cuttings from each female will now be well established with roots and should be vegging along nicely. Once you've decided on a keeper(s), cull the rest.
You now have your best mother plant(s) from which to take clones for future crops.
Here's the problem with that scenario. It'll be a GOOD 5 months before you get your first best plant only harvest.
If you start from feminized seeds you should follow the steps above except for the sexing obviously. Or..like I do with feminized seeds..just plant 2 or 3 or however many mothers you want to start out with. Once they're big enough take cuttings.
So, say you want 15 plants to flower and you have 3 feminized plants growing from seed. As soon as the 3 plants can give up 5 clones each you go for it.
If there are different phenotypes (characteristics) among the 3 I'll choose one and HOPE I'm right. I say that because I have to decide before the first batch (5 clones from each of the 3 mothers) finishes flowering if I want to have fresh rooted vegged clones ready to replace the ones that are about to finish. Hope that makes sense.
OR..you can go from clone.
If you are getting clones from a trusted reputable source and they are not too far cloned from a clone from a clone from a clone, and if they are a strain you want, get a couple.
They're rooted and sexed already and all you have to do is grow them into mothers. That is if you WANT mothers. I suppose if you can buy all the clones you want for a great price, over and over again...and you don't have resources to have a veg room...buy 15 clones (pretending that you want to flower 15 plants..just an example).
Even if you get clones from a trusted source, it's a good idea to take some precautionary measures like maybe some dunks in miticides, fungicides, mildew-icides(wtf?), virus killers (seeds can have a virus too)..all that stuff. Point is that when they're little it's much easier to nuke em.
So...to sum it all up.
Get normal seeds if:
-you have a lot of time and if you would like to make some pollen for breeding and to maybe select your favorite phenotype from a strain.
-you can't get a strain you want in feminized version
-you can't get trusted clones of a strain you want
Get feminized seeds if:
-You don't have time or the need to deal with male plants
-You have a med permit with a low plant count and can't waste your count on male plants
-They are a strain you want from a reputable dealer. Some "breeders" create femmed seeds by hermaphroditic means. This is NOT the right way.
Get clones if:
-you can
-at least that's what I would do to shave months off the process. I'd also keep a couple as mothers.
Good luck and I hope that helps if even just a little.