Questions About EngineeringFollow

I’m fairly new to this whole Engineering thing. I understand that eventually, I’ll have to make a choice between Goblin or Gnome engineering. It’s my understanding that Goblin is kinda blow stuff up technology, much more aggressive, while Gnome is more like the make cool stuff, more passive, technology. I’m wondering what you all think. Which is better? I want to make stuff like the Goblin Mining Helm (http://wow.allakhazam.com/item.html?witem=10542) (After looking stuff over, I believe the only way I can get this is through Gob engineering.) And the Gnomish Mind Control Cap (http://wow.allakhazam.com/item.html?witem=10726)

So, which is better?

And, which can make Arcanite Mechanical Dragonling?

Thanks!