Oh come on . Sammy is way WAY better than HTC. Try using HTC for a while and you will know how things stop working . Faulty motherboards , lava like screens, Camera stops working and what not .
Regarding sense , it is such a memory extensive launcher that it seriously slows down the phone considerably . Launcherpro gives you those widgets and it is much lighter .
Sammy might feel cheap but they are well built and wont give away in a year like HTC's do .
you sound more like a fanboy
yes, HTC have a few problems: high price, bad battery, camera never upto the mark, sound not upto the mark, SenseUI is heavy but i haven't heard complains that certain parts stopped working.
but Samsung (like most manufacturers) is really late at offering updates, 1 update & they are done, feels plastic (lowend mobiles).
but 1 point i have to highlight is HTC new bootloader policy. locking bootloader and you need to sign some page to get it unlocked (& voiding warranty that way). other than that, HTC is on par with Sammy.