My $.02 worth:
"I want to know whats better?"
Which is better- Chevrolet or Ford?
"what I do care for is not getting to hot at standard speeds"
I feel that both companies have good cooling solutions for their processors- I'm not wild about the P4's requiring a Cu based Hs, but AMD is tending towards needing the same sort of solution.
"Chipsets that have issues, chips that crack"
Intel wins the Chipsets issue IMO, but it's not nearly as bulletproof as it was- witness the I 820 double fiasco of 1 1/2-1 year ago. AMD's own chipsets are good solutions, but harder to find. Biggest Beef I have with AMD is that they depend too much on 3rd party chipsets (Via, primarily)which have problems that have to be dealt with in order to have a stabile system.
As far as the "chips that crack", Intel wins this one IMO by being almost "dummyproof". It really isn't a problem for the AMDs as long as you use some sense and take your time installing the HS/Fan!
IMO, if you are not taking O/Cing into consideration, the AMD is the prefered answer for the "I want something that will last and not have to be replaced in a year or two." part of your question. AMD (from what I understand)is committed to the Socket A platform for the foreseeable future. So(theoretically), in 2 years time if you decide that things are getting slow, remove the HS/Fan, remove the processor, install the 2.6 ghz "Manowar(tm)" processor and go your merry way.
However, IMO that is unlikely to work, but theres realistically no chance that Intel newest (2 years from now) processor will work in their current form factors. Both Socket 370 and the current P4 socket are pretty much limited to what's out NOW- future versions will require a new M/B (and who knows what else)
Finally note- as far as designed life- both companys claim that the design life of the processor is approximately 10 years. Personally doubt you'll be using either in that time, however, thats what they say.