Difficult to tell! I would probably have to list them under particular headings - I can really only give some suggested examples:
First great climbing experience: Pic du Midi d'Ossau (voie normale), 1997
Definite most enjoyable Alpine experience: Zinalrothorn, Valais Alps, Switzerland (easier than the other categories, as I have only about a dozen alpine "ticks"!)
Possible most enjoyable rock climb: Centurion, Ben Nevis
Possible most enjoyable mixed climb: Fingers Ridge, Coire an t-Sneachda.
Probable most enjoyable ice-climb: South Post Direct, Creag Meagaidh
