I think either layout is fine. But what I have a stronger opinion on is the terminology used on that page.
When a new Bitcoin-user arrives on that page (a non-techie), he will think the following:
1) "What the hell is a "graphical interface" and how does that relate to Bitcoin"
2) "Are all these softwares equivalent? Do they serve the same purpose? Do I need one or several of them?"
3) "Which one is the official client?"
To solve these questions, I propose the following:
1) Change the "Graphical Interface" title to "Bitcoin Client Software"
2+3) Create little blub under the heading, saying "Below you will find several leading Bitcoin clients. Any of them will work for all basic Bitcoin functionality. Bitcoin-Qt is the original software, and if you're unsure which one to use, you should default to Bitcoin-Qt." <-- I'd also append this last sentence to the beginning of the Bitcoin-Qt description. The current sentence "Bitcoin Qt is the frontend for the original code written by Satoshi" will be confusing/meaningless to any non-techie
Great idea to get these clients on that page!!
I think with the direction that consumer technology is going having multiple clients on the official .org domain may be a bad move.
A majority of the users that we want to adopt using bitcoin will be accustomed to the streamlined, simple, push-one-button-and-it-works interfaces of things like Apple's iPhone, instagram, twitter, etc.
These types of users may feel overwhelmed with the choice of multiple clients(Even with a recommendation)
It might be good to just attach some sort of Advanced/Intermediate(Could use different terminology, actually) link to the download of the official client that brings you to alt-client listing page such as this.
