Hey, BG, happy 420 to you, too, lol. Too early here for me to blaze yet, but I'll be packin a bowl soon enough.
As far as seeds go, TGA seems to have some solid genetics...though I haven't actually grown any of his strains yet, so I can only go by what I've read here and elsewhere. I picked up a pack each of Jillybean and JTR last month during the Attitude bday promo...will probly start the Jillybean as a first shot at TGA strains, since it sounds like something I'd really like. I
have grown the GHS white widow (at least I
think it was their ww, but not 100% sure) several years ago, and I was quite happy with the results...and I
was growing one of their White Rhino up until this week, and have no complaints about that one either - it seemed to be growing just fine with no probs, but I never got to test the final product. I have a pack of their Super Lemon Haze waiting in the wings.
There are so many choices nowadays, it really depends on what kinda high you're looking for. Ideally, you'd want to be able to test the actual product from a particular strain (from a particular breeder) before making the investment (in time and money) to grow it out, but the next best thing I suppose would be to read as much as you can here about the strains you're considering (esp. grow/smoke reports) and then pick the ones that match what you think you're looking for (I like the "Advanced Search" option for that purpose). Another place you might wanna check out would be Sannie's shop (
http://www.sanniesshop.com/sannies-seeds/)...I haven't read a bad review yet of any of his strains, the prices are very reasonable, and their shipping has been as reliable as attitude's for me. Nirvana (
http://www.nirvanashop.com/) is also a good place, reliable shipping and very reasonable prices (even better today, since you can get a 20% discount - today only - by entering the 420 coupon code)...I got my Maui Waui from them and have no complaints about the final product. You can get Nirvana seeds from attitude as well, but not sannie's gear.
Honestly, I've grown out ten or eleven diff strains over the years, and can't say that I disliked any of 'em...some may have been better than others, but they all did the trick for me, and I don't regret having made the effort to grow each one. However, I don't consider myself a "connoiseur" at all, my experience is limited to those ten or eleven strains, and I'm not a heavy smoker (frequent, yes, since I toke almost daily...but one bong rip at a time is usually sufficient to get me where I want to be), so I don't need super-potent bud to make me happy. Usually I prefer sativa-dominant hybrids (since I like to partake throughout the day, without falling asleep or getting glued to the couch), although I'll continue to experiment with more indica-heavy strains (for night-time use) in the near future. In the end, it really depends on your personal tastes, imo, and since there are so many options available, sites like riu are extremely helpful in finding hands-on info about specific strains (by specific breeders) provided by folks who have actual experience in growing those strains. Of course, the medicinal effects will likely vary among different users, but I trust first-hand accounts more than the breeders' descriptions of what the high is supposedly like.