Hi. I have the slow hand neck and middle in my strat. Clean they are very warm and natural, not really a twangy (SRV style) tone, but rather fuller sounding. Overdriven they have to my ears a round,low mid based tone which sings and has great sustain.
The IT's are brighter and more like a Texas Special,twangy and more cutting without being harsh.
I dont think you would go wrong with either, but maybe the IT's are a little more versatile?