If there was just a $50 price difference, I'd go with the Samsung. But right now I have been heavily researching both devices and I am really leaning towards the HTC.
HTC Pros:
-Industry standard microUSB port for sync/charge & MHL
-Cheaper
-More durable build quality (ie not all plastic like Samsung)
-I prefer Sense & its widgets over TouchWiz
-Available stylus
-Single-core CPU is still superior in some benchmarks and applications
Samsung 7.0 Plus Pros:
-Fantastic screen. A shame it's still only 1024x600
-Great performance from dual-core Exynos CPU
-Much thinner & lighter
-More stylish due to darker color (I hate white, especially on electronics!)
-Better cameras
-Ships with Honeycomg and ICS is coming eventually