Agassi was in clearly better form than Sampras in either 95/00 encounter yet needed a netcord return in crunch time to edge Pete, meh. Reverse the form advantage and I reckon the matches are less close in Sampras's favour than they were in Agassi's favour as they happened. All this 'comfort' dissipates when PETE is involved. We've seen that in Mugiami, Agassi leads 6 titles to 2 but no question whose peak is higher and it's not Andre. (Darkly hilarious how much more you're willing to grant Federer than anyone else, reasonably unbiased truth-seeking dude.)
Yeah I'd forgotten about Agassi's 1988 RG, his first top season would actually be his best form there I suppose (can't say much of 1999 due to being stomped for the first two sets by Medvedev, try that against Wilander and you lose in four sets max), pushed Wilander well for four sets before petering out but Sampras would still have more trouble if it reached the fifth set and most likely loses in four anyway, so yes.
@metsman what are you doing standing by while PETE is being slandered so

help me restore some justice in these godforsaken lands.
Losing the first set + three tiebreaks means no threat, interesting. Rochus was up 4-1 in the third set according to a match report. Safin was always the better player but made a show of wasting opportunities, 1/18 on BPs lal. Good thing he broke exactly when needed most.