I'd say I'm a minimalist but not reckless, not overly-light without being too heavy & keep it all in a 50ltr rucksack!
Pack varies dependant on the trip length but always there are:
Tent 2.75kg
sleeping bag 1.2kg
Multimat Adventure Air 500g
Trangia 27 + Fire Steel750g
SOL emergency bivy 110g
Petzl e-lite torch 110g
Suunto field compass & Map
2ltr Platypus (usually full)
Hydropal water filter
Home-made I-pood trowel & bog roll 200g
Mosinet
1st Aid kit
Camera & Gorilla-pod 700g
Reckon I lugg on average 15kg food & water are the killers!
For day Hikes just take out the shelter & sleeping kit!
But as already commented it's not too uncomfortable & keeps you fit!