A Noctowl is trash even with Night Shade, 68 Defense EVs still makes things lol at its Defense. 70% Accuracy is scary either and things can use Rest-Talk (Snorlax :D) and negate Sleep's effect, making you unable to move. Normal types also lol at that and Snorlax pummels you without Reflect, which makes you lose your only reliable recovery on that set if you use Reflect. Honestly, that thing is weak and is unreliable at lasting long. :(
Really? Base 100 HP makes up for that, along with Reflect. It also has Air Slash, but let's ignore that. Rest Talkers negate all sorts of sleep, from everything, so discrediting her on that is nothing more than an insult to the proud owl. 96 SP.DEF along with 100 base HP is the main focus, not taking physical attacks, which it can actually do, not that it is meant too. It isn't meant for taking Snorlax, to even say that makes no sense. Anything it can't take gets blown away, racking in additional damage. Your reasons also makes no sense. I'm not saying it's the best, but it's certainly isn't the worst.
70% Acurracy, huh? Know how many things rely on that? That is the most used Sleep move, works on them. Take it from someone who uses it on their team for quite a while.
EDIT:Even those reasons are very stupid. Very little can even take an NP Psychic from Azelf, and It can survive, with not much hassle, an NP Flamethrower from Ninetales. You're giving very shabby reaons for knocking Towl, stating only the cons, which still, it can easily avoid. Do we hate Blissey for being Hera-weak?
EDIT2:Night Shade is meant to be a defensive manuver, in case it has to fight back against SPECIAL ATTACKERS, NOT DAG-ON SNORLAX! Why would she even fight Snorlax? Along with the fact that not every set is Sleep Talk. But that's besides the point. Her typing isn't the best, but certainly has possibilities. Switching in on EQ or Shadow Ball, or ANY sleep move, with Insomnia, makes it very viable. She survives much, with BASE 100 HP, which you seem to ignore, along with base 96 sp.def, which I've mentioned.
(Edited for recycling)
EDIT: Noctowl wants Arms and Seismic Toss just because it wants that IMO. :D Yeah, I must admit now, it's rather hard to take down but IMO, it must have Roost or it can't take hits after a while (random Non-STABed Thunderbolts from say, Gardevoir or something like ) and o_O That's Smogon's set except the EVs are altered and you say you might use Reflect which is a no-no. Now, I just like nagging about Owls and things. :D
Why did you edit instead of just post?
Anyway, I used to run Noctowl without Roost at all. It isn't absolutely necessary for it's role. It is a great supporter, especially in UU. I just don't like people giving half arsed reasons for bashing something down. No offense, of course, to you & King Ttar.
EDIT:And that is my set, that I have been using since before I heard of Smogon, just a coincidence. If that is the case, Blissey SUCKS against Gengar, since Seismec Toss misses, and it gets 2HKO'ed by Focus Blast.