We'll I suggest you go out and try it. That's the best way to test his abilities.
But yes I use my 80% 2400+ Alakazam with psycho cut / psychic quite a bit as it's a really potion efficient attacker. It's good against snorlax with zen headbutt!
As you mentioned, it's is quite mandatory to dodge every attack from the defender, if possible.
How beast is Alakazam for attacking?
I have heard some good things since Alakazam's buff regarding his attacking prowess.
I have a 98% IV Alakazam with Psyco Cut/Psychic which is the best attacking move and I know he is basically good for attacking but his low hp makes him useless for defending.
My question is how good is a psycho cut alakazam now for taking down gyms? Do you pretty much need to dodge everything when using him? And on average how many pokemon can you take down in a row with your Psyco Cut alakazam?
I will likely be powering up mine but I thought it wouldn't hurt to ask people about their experience with the new and improved alakazam.
Answers
Alakazam, after the cp buff, is probably the 2nd highest DPS pokemon available, only after Snorlax. As you said, that doesn't count that much considering his HP.
His pros are his high DPS and the fact that he only has 2 real counters: Gengar with any ghost moves and Dragonite with Steel Wing
His cons are his low HP and the fact that his is not really a good counter against any of the common gym defenders (considering the type advantage). He must destroy any poison pokemon like Nidoking and Nidoqueen and also any fighting-type pokemon, like Poliwrath, Machamp or Hitmonlee. Against any others, you must be NICE avoiding charge moves and is also good to dodge the slow-quick moves, like Rhydon's Mud Slap, Poliwrath's Bubble or Dragonite's Steel Claw (specially this one, as he is weak to steel-type moves).
It really worth investing your stardusts on your Alakazam.
Snorlax isn't a top DPSer, because it's attack stat is too low and it doesn't have STAB on it's quick move.
It does a high amount of total damage before it faints because it has a high HP pool, but for raw DPS, there are several better Pokemon.
Gengar on defence doesn't counter Alakazam on offence because Gengar's HP pool is crap, while the attacker has the option of dodging. A Pokemon that does neutral damage to an Alakzam but doesn't die in 20 seconds is going to do more damage than a Gengar would, and Alakzam does extra damage to Gengar due to it's poison typing, countering Gengar's super effective moves against Alakazam.
I don't know where this comes from, but since you're listing the moves I'd imagine that means it includes many copies of the same pokemon with different moves (e.g. all 6 movesets of Dragonite, all 6 movesets of Snorlax, all 3 movesets of Vaporeon, etc... will outrank it).
If this includes legendaries as well, then #62 is an amazing placement. Even excluding the Legendaries, it's still a solid placement. Considering the average pokemon has 6 movesets, that places Alakazam right around #11 Pokemon, which sounds about right. Add in that you're using it as an attacker against poor AI, not actually dueling, and we know that Alakazam is the most efficient attacker / most efficient potion-user in the game (excluding type advantages) it's definitely worth powering if you have the candy.