I personally find that I don't need anything more than what Spectacle gives me (splitting windows is really it). That said, I love me some Alfred workflows. Alfred is the single best software purchase I've ever made.
I have a similar one to yours that creates a new plain text document from text on the clipboard.
My most often used one is Open current safari tab in chrome. I prefer using safari as I seem to get the best battery life using it. I don't have flash installed so any page that may have a flash component just gets opened in chrome using that Alfred workflow.
I occasionally need to open links in Firefox (rather than Chrome) so I have a FF <url> workflow that simply opens that link in Firefox. I need to automate more of my workflows.
Github repo: https://github.com/jgallen23/layouts
I personally find that I don't need anything more than what Spectacle gives me (splitting windows is really it). That said, I love me some Alfred workflows. Alfred is the single best software purchase I've ever made.