Quoto da una risposta che ho dato in un thread simile (il ragazzo chiedeva se fosse o meno il caso di continuare a giocare con la tastiera):
The best controller is the one you're the most comfortable with. Period.
I grew up on Amiga and Quickshot joysticks were all the rage back then, so it's only natural that when I first started playing I'd do poorly with joypads and keyboards and then started being competitive all of a sudden as soon as I got a hold of a controller that closely resembled those joysticks.
Each controller has its pro and cons but they tend to balance themselves out in the end, so it all boils down to a matter of playstyle, practicality and personal preferences.
Also, reliability is pivotal when it comes to controllers: if the thing keeps breaking apart every other month and parameters such as throw, engage, deadzone, spring tension and the likes change everytime you fix it/pick up another one, then you'll never get the chance to develop the muscle memory required for certain moves and you won't likely ever see the end of it.
Online, in humongously-high latency conditions I'd wager that keyboards might actually have a slight edge since they cut input-delay pretty much to zero and it adds up (even then, it'd be nearly unnoticeable unless you are an overanalyzing hardcore player);
the lower the latency, the closer the performances of each type of controller get, to the point that offline it doesn't really matter.
None of this matters unless you got two similarly skilled veterans at the top of their game playing each other though, then yeah, perhaps the controller might make a difference, for better or worse (although it ain't as clean cut as you might think). Rookies on the other hand? Odds are that they haven't even learnt how to use their controller properly yet, so it's kind of a moot point.
Stick with keyboards as they are really versatile and practice, practice, practice until you'll start feeling like there isn't even a controller between yourself and the game anymore, at which point you'll finally be able to focus on the metagame, increasing your competitiveness tenfold as a result.
Also, keep in mind that SWOS is rather easy to pick-up, yet excruciatingly hard to master, the learning curve is steep and you're facing people who, on average, know the ins and outs of the game like the back of their pockets and who've been playing online since 2006 or so.
The competition is downright fierce (despite SWOS being a niche game at best nowadays), so be prepared to get your ass ruthlessly kicked for a while and nope, practicing offline doesn't help in the slightest because the AI is way too predictable.
Non ho voglia di tradurre ma, morale della favola, il miglior controller è quello con cui ti trovi più a tuo agio e la differenza la fa soprattutto l'abitudine (dunque l'affidabilità è anch'essa fondamentale).
L'obiettivo è quello di riuscire a dimenticarsi del controller, di modo da potersi concentrare sul metagame, piuttosto che sull'esecuzione.
Nel momento in cui sarai in grado di focalizzarti unicamente sul gioco ed il controller che usi ti permetterà di fare tutto ciò che hai in mente, allora avrai trovato il controller perfetto.
Poi, ogni tipo di controller ha pro e contro ma sono finezze da smanettoni ultraveterani.
