For me it is LSU Golden Celeste. Most disappointing  because it is definetly a highly productive variant but all the nice size figs that have a chance to ripen DROPs. I would say for its size, about 3ft tall,  well branched it had abundant figs, pushing figs at every leaf node. I hope the droppings is weather related like we have colder nights in Sept down to 52*F(12*C). If it is the cold , I guess I could solve this with a greenhouse next season. Hope fig friends in warmer zone can chime their experience on this variant.

The 2nd most disappointing variant is MegaCeleste. Few fruits & taste is flat. Hope it is related to its 2nd yr age.

Third most disappointing one is LSU Gold. Well branched & over 3 ft tall, only one larger fruit. I have read LSU Gold gets really good in year 4 or 5. Hope this is true, its year 2 now. I can hardly wait.

Paully
I have not experienced dropping due to cold even though we have many nights around 40F (forecast of 35F on Saturday night). It could be a combination of things including cold, rain etc, or I may be just lucky.

Perhaps its the climate.  I have a 1 year old LSU GOLD that I got my first fig ever (posted on GW).  I only got two figs off that tree and that is because I reduced the crop on my two foot potted tree.  Im guessing in a few years I will get excelent crops and good quality.  Keep in mind I am in 95 degree summers with extreamly high humidity.  Almost any of the LSU figs are designed for high humidity.  The other tree I have is a celeste.  The somewhat large crop for a 3 foot tree is not rip yet.  Dont know if it will ripe.  I have 2 more moths of good growing weather. 
I know the subject of the post is disappointing varients and I can understand why you have had difficulity with these two types.  They are designed or bread for the SE wich is normaly high heat with high humidity in the summer.
Doesnt this justify that the climate your in needs the correct variant of a tree?
-Bill

Too many to list.

I had good vegetative growth on most figs, but limited fruiting.  I am going to have to try pinching more agressively next year. (though I did have more than one fig which just kept throwing new shoots from the places I pinched without fruiting.)

I put all my 5+ gal containers into a raised bed filled with leaves and covered to a depth of 9-12 inches in mulch (for water retention)with overhead timed irrigation and figured I'd have great production.  Cold temperatures and more vegetative growth was the result of this summer, though. 

My own locally found unknown is covered with quarter and smaller sized fruit, but I doubt I will be getting any ripe this fall (unless temps change drastically).  I did get fruit from 3 of my 20 or so varieties, but not in great numbers.

Calvert was primed to fruit for me this year, had a number of figs forming, but my local varmints took care of that. (I've had it for 5 years and this is the first time its even produced anything.  At least it seems less affected by mosaic this year).  I had it marked for composting this year if it was still disappointing, so I'll likely give it another chance and hope for a better 2010.

~Chills

Chills, how tall is your Calvert. I am thinking of getting a REAL one(Have Possible fake one from Franklin) and 5 yrs, hmmm got me thinking. I heard the real Calvert is great tasting. I hope next year you have a bonanza harvest from it. Also, have you prune the roots of this variant before? I notice when my variants were too root bound their productivity was impacted.

Calvert has been a real delight, here. The tree is still only about 2' tall, but has had fruit ripening steadily for 6-8 weeks. I am guessing it had 60-70 fruit this year, second season in ground. I would argue that is is a good substitute for Adriatic.

Holy toledo Jon. Thanks. Thats what I like to hear & HAVE. Not to forget you are the Guru & I am the new kid on the block. Thus if I have half dozen figs from a new tree, I am a wildly happy Canadian, doing the Happy dance like when I imagine striking the big lottery.