all these words are unnecessary. to sum up, the Kemper sounds about $4,000 better than the Pod HD. also, when you factor into the opportunity cost of the 3,000 hours of reading forums and tweaking you end up doing, the Kemper is far cheaper, as you can dial in dozens of killer tones in about an hour. My Pod HD guide is what... 14 really long web pages? My Kemper guide is 1 page.
still, if you need top-class delay and reverb effects, you may find the Kemper a bit lacking. it also has no computer editor (although the unit's interface is very quick and intuitive).
so the fanboys say, you can't compare them because they're not the same price. well, first of all you can ignore price and compare them anyway. The Kemper is not the same as buying a high-end sports car, which basically none of us can afford, regardless of how thrifty we become or how much overtime we work. Relatively, there's a huge price difference between Pod and Kemper, but in absolute terms, the difference is not that big. If you want to afford the Kemper, you likely CAN do it. If you don't WANT to, that's your choice, and I certainly respect it. But if your rationale is that the Kemper isn't worth the price premium, I would argue otherwise. I definitely think it is, and I really wish I had gone straight to it instead of spending so much time with the HD, regardless of the vacations and other luxuries I would had to have sacrificed at the time.
the thing that really nailed it for me is that the Kemper's design means no jockeying on the forums to add this or that amp model (And despite all that, still no Mesa Marks in the Pod) - anyone can make them and most people share them for free. Some charge for them, but the prices are much cheaper than real amps and the quality is generally quite high (prices way cheaper than the announced model packs for the Pod). also, the Kemper staff engages its customers on the forum and its frequent firmware updates clearly target what the users ask for. Digital Igloo seems like the only L6 staff engaging the customers here, and it seems that this is actually a very recent thing. Still, he can't fix the Pod HD. 4 years and EQ's still in phantom parameters.
The Pod amps are good, and the cabs aren't quite as bad as they may initially seem. The problem is that its all a juggling act - there's some seriously fake stuff going on in the Pod. You dial in tighter palm mutes, and now your power chords are thin. You get the B and G strings to thicken up, and now the thick strings sound dull or muddy. Occasionally you get a glimpse of this incredible tone, but it's all a tease. With the XT/X3, the tone wasn't anything mind-blowing, but what you heard is what you got. You could dial it in quickly and then you were done. Overall, it wasn't a revelation but still a positive experience. The HD is a lot of frustration.
Anyway, I don't want to poo poo the HD too much. I just really love the Kemper.