The Fudzilla conclusion should have come with a giant asterisk. LGA1366 is designed as a server socket and seats more server-oriented CPUs, while LGA1156 is a desktop socket that fits CPUs that are more oriented to desktop usage.
1. Triple-channel memory: server sockets generally maintain compatibility with newer CPUs much longer than desktop sockets do and servers tend to have more CPU cores in them than desktops. The triple-channel memory may be overkill today, but it wouldn't be for a future 8 or 12-core CPU. On the desktop side, Intel would just make a new socket to replace LGA1156 that supported two channels of DDR4 if they needed more bandwidth. Servers also tend to handle more memory I/O-intensive loads than desktops do, so the triple-channel memory would be better-utilized in servers than in desktops.
2. HyperThreading: this will benefit servers that run heavily-threaded tasks more than your average game, although some desktop apps do take decent advantage of HyperThreading. HyperThreading provides somewhat of a performance boost, although it's not anywhere near as good as more actual CPU cores.
3. The thermal and Turbo Boost characteristics of the CPUs is also a bit different. The Bloomfields have a relatively limited amount of Turbo Boost under single-threaded loads, probably because they're designed as server CPUs and are designed to be under a heavy, multi-threaded constant load. Having a single core being able to greatly boost its speed wouldn't be all that useful in a server, for the most part. The Lynnfields have a ton of Turbo Boost for single-threaded tasks as quite a few desktop applications are single-threaded and Turbo Boost would be able to give them a decent performance bump.
Somebody brought up AMD and SMT/HyperThreading. AMD's method of multi-threading in the Bulldozer is not SMT. CPU cores with SMT have one core's worth of execution resources (fetch unit, decoder, integer unit, FPU) but execute multiple threads on that one core's worth of execution resources. AMD's Bulldozer modules have two integer units, both handling their own exclusive thread; the fetch unit, decoder, and FPU is shared between the two integer units. This is not SMT as there are some independent hardware execution resources for each specific thread, namely the integer units. The Bulldozer's multithreading approach looks a lot more like the interleaved multithreading approach that the UltraSPARC T2 "Rock" uses than anything using SMT. AMD calls their approach CMT, but this appears to be their own term and not an already-defined concept like SMT.