Studio One is the best DAW for the price if you can afford the professional suite. It's comparable to protools and is capable of studio production (with the right plugins). It's basically a mixer / rack style daw, but with a full set of features, though it lacks native plugins that are useful.

But if you're doing EDM stuff, you'd probably want ableton. From my personal perspective, it's not as straight forward as studio one, and I wouldn't use it to make a rock album, but it comes with a shit ton of native plugins and samples geared towards edm type stuff. Studio one doesn't come with anything useful.

As far as plugins, I'd look at native instruments for instrument plugins, and waves for mixing plugins. Waves requires an ilok2 usb dongle to use it. Each developer has plugin packs, though they can be pricey.