Are these games any good?

Some of the games are listed multiple times, there.

Anyways, I recommend VVVVVV.

BAD RATS: THE RATS' REVENGE

Why don't you check them out on the Steam store page and see what you would like yourself?

I'm a fan of puzzle-platformers and I loved Rochard. VVVVVV is also a good game but the loose controls can be infuriating. Dustforce is also a well made game but eventually got too difficult for me.

Some of those are good. Obviously you want to pick Bad Rats, but if you already have it, I would recommend one of the following:
I have not mouth and I must scream
VVVVVV
Etherlords 2
Soulbringer
GTR revolution (If you have a wheel)
Wasteland

Vanguard Princess

Chaos ride is wicked fun.
Journey Down: Chapter 1 is decent, though a little short.
Ben There, Dan That is awesome
Contraption Maker is quite fun once you get past the absolute easiest levels.

Surgeon Simulator is fun, but also infuriating.
VVVVVV is a good game, also infuriating.
Supreme Commander is an excellent RTS.
Revenge of the titans is good good also, it's a tower defence.

I haven't played any of the other games I think.

For me supreme commander is the best game on that list. It's an epic RTS!

VVVVVV is a short but fun game, if you don't mind raging at your laptop.
I haven't played the normal version of Dustforce, but DX was awfully fun, but also very challenging for a completionist.

BAD RATS: THE RATS' REVENGE is a classic, one of the finest games to grace the steam store.
Not the Robots is also not too bad, quite a fun little game (On a serious note).

Rochard is quite good game out of those.

also VVVVVV

gorky 17

a lot of that is shovelware

I really enjoyed Darkout, though I only played a little - 7 hours, says Steam. I have heard there's limited content later in the game, but I can't really address that. Also, it's been a work-in-progress all along, with promised content for the future, and that really annoys a lot of people. But it's lovely to look at, and I found it fun to play.

BAD RATS: THE RATS' REVENGE XD

The Bad Rats joke is getting realllllly old. -sigh-