Blackberry or android?

[Aj]

I'm thinking of getting a new phone soon; and i can't get an iPhone as my phone company doesn't offer them, but the phones I am looking at include the following -

Blackberry 9300
Blackberry 9320
HTC Wildfire S (Android)
Samsung Galaxy Gio (Android)

Which one of these phones would be the best option for me? I want something that is great for texting and twitter. I want to be able to have a wide variety of apps from games to utilities, etc.
I use Instagram, and Blackberry doesn't offer Instagram which is a downfall for me.
But Blackberry has a keypad which to me seems better to type on then a touch screen, but a touch screen would be fine I suppose.

Which one would you recommend? Which is better quality? Thanks!