I have to go with the sparkle dun and the iris caddis. Definite Blue Ribbon influence but both great flies and easy to wrap. 
i like a thread midge i tie
http://www.danica.com/flytier/nfrechette/tan_thread_midge.htm
For me it has to be a beadhead leech. I use a premade dubbing brush made with black seal fur so it only takes me about 1 minute to tie one up. They are extremely effective and almost indestructable. Great pattern that catches a wide variety of fish.
Jim Smith
CDC and Elk caddis (not elk) (dear hair) LOL LOL But VERY productive fly for me. I bring at least six with me every time I go, and give away 3, brown or olive, they work !!
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Bob Boese
look at Generic flies. Easy to tie and all work.
Here in the East, one of my most successful flies has to be a scud.
It is very simple to tie: just dubbing, fine wire for ribbing & a very narrow clear plastic strip (or scud back).
Deadly on both limestone & freestone streams…
CDC & Elk gets my vote, too.
Regards,
Scott
To imitate/simulate an adult caddis, a CDC & Elk like this:
http://flyanglersonline.com/flytying/fotw2/010702fotw.php
or an elk hair caddis like this:
http://www.danica.com/flytier/ccraven/_thumb/tn_elk_hair_caddis.jpg
To imitate/simulate an adult mayfly, a Hairwing Dun like this:
http://flyanglersonline.com/flytying/fotw2/011606fotw.php
… that are very easy to tie and also catch lots of trouts, which gets them on my list of 13,000 favorite flies.
First, for a midge larva that produces everywhere it is fished, the t.c.t.k. which is much like that shown in Norman’s post. I tie it on a size 18 Dai-Riki 135 scud hook, mostly in olive brown, but occasionally in other colors.
Second, for a sculpin / baitfish style streamer, the PSC. This is a pine squirrel zonker only fly that has worked everywhere that I have fished it. Hard to beat the jolt when a trout hits this little streamer while it is being stripped through moving water.
John
X 1
I have to get this to 10 characters so this is it!
Funny you should ask , its the fly
I’m tying for the April monthly swap ,
the furled body parachute fly. It’s
very simular to the Para-glen in the
fly archives here at FAOL. I first saw
the version I’m tying demonstrated
by Leroy Hyatt. A simple , effective
dry fly at it’s best.
It’s about as fast and easy to tie as anything I use frequently and the fish really don’t seem to pay attention to the tie quality.
We use it for lake dwelling Kokanee, Landlock’s, Bow’s, Brown’s but it takes Spots and Smallies too…Hence the name General Chow.
Dave
I also have two: Parachute Adams and Peacock and Brown.
PMD flymph
I like a water cricket, which is in the FOTW archives.
- Jeff
Size 10 scud hook, brown chenille body, partridge collar hackle… Short chartreuse floss tail optional. Under an indicator in the summer for bluegills, it’s unbeatable!
Beadhead Mohair leech is a close second.
fishng still waters alot their two thtare killers. one is my own called
itty bitty
hook 10-18 streamer
thread 8/0-14/0 colour to match floss
tail 6-14 strands marabu
body any brite colour floss
thorax pecock or ostridge herl
you fish it by pulsating the return. it works great
the next is a mosqueto dry 10-26 gets them every time
Brassie. Thread and wire. Hook sizes 10 - 20. Traditionally copper but I have found red and green to be effective also. The fancy version has a dubbing or peacock head but that seems to be unnecessary for the fish. Anglers seem to be more likely to by them, or thank you for them when you give them a handful, if they have a head. I have taken trout to 27" on brassies and fish them in lakes and streams.
Another is a pattern I learned as the Monroe Leech. Marabou and thread. Strip some marabou off a quill and tie in the tips as a short ( or longer) tail. Twist the butts into a rope, wrap up to just behind the eye, and trim. Imitates leeches, worms, damsel fly larva and who knows what else. I use mostly olive, black, red, purple, and cinnamon. Mix colors for a mottled appearance. Has proven deadly for spring creek trout and trout, crappie, bluegill, and bass in lakes. Larger sizes even work in saltwater for some species. Hook sizes 14 to 8.
Can forget a rabbit leech. Rabbit strip and thread. Various sizes and colors. Works in fresh and saltwater for all sorts of critters.
First, the Usual - or a Rusty Usual (rusty body and tail of hare or antron)
Second, the Red Fox Squirrel Nymph - although the same routine with mink fur can make any colour of nymph you want, and mink is very easy to work with. Use embroidery mylar thread for the ribbing. A beadhead helps, or put lead under the thorax.