Dreadfully hard to choose a favourite TBH , But those ten are probably as near as I will get to favourites, there are so many good novels out there.
Aftermath, Charles Sheffield (Very Good)
After Doomsday, Poul Anderson
Atlas Shrugged, Ayn Rand (Hard to grasp)
Alas Babylon, Pat Frank (Truly a superb classic)
Amerikan sunset, Jennifer Ladewig (Drivel)
A Wrinkle in the skin, John Christopher (A character essay )
Black Sun, Robert Leininger Very good
Blood Crazy, Simon Clark
Crabs, Guy Smith
Comet, (The) Robert Charles Very Good
Damnation Alley, Roger Zelazny Better than the movie
Day after Tomorrow, (The) Whitley Strieber
Day by Day Armageddon J L Bourne (SUPERB BOOK)
Day of the Triffids, John Wyndham
Death of Grass, John Christopher
Deathlands, Jack Adrian
Deluge, Fowler Wright
Deluge, Richard Doyle
Drought ,(The) JG Ballard thought provoking
Drowned world, (The) JG Ballard interesting
Down to a sunless sea, (either version) David Graham (Truly great, another classic)
Earth Abides, George R Stewart 2nd only to Alas Babylon
Earth Winter, Richard Moran
Eternity Road, Jack McDevitt Interesting future shock
Empire of Ice, Richard Moran
Empty World John Christopher
Famine, Graham Masterson
Flood, Richard Doyle
Freeman, (The) Jerry Ahern
Heavy Weather, Bruce Sterling
Ice, Arnold Federbush depressing
Icefire, Judith & Garfield Reeth Stevens entertaining
Ice Quake, John R Spencer
Kraken Wakes, (The) John Wyndham
Last Ranger, (The) Craig Sargeant ( Rambo wannabe crap)
Last Light Alex Scarrow
Living is Forever J Edwin Carter
Lucifer's Hammer, Larry Niven & Jerry Pournelle. (Becoming a classic)
Long voyage back, Luke Rhineheart( In the top ten of all time )
Long Loud Silence, ( The) Wilson Tucker
Last ship, (The) William Brinkley
Malevil, Robert Merle
Moonfall, Jack Mc Devitt
Night of the Triffids, Simon Clark (Good follow on from Day of the Triffids)
New Madrid Run, (The) Micheal Reisig
On the beach, Neville Shute
One Second After William Forstchen
One Year After William Forstchen
Out of the Ashes, ( Ashes series) William W Johnstone
Plague 99, Jean Ure
Plague of the dead (The Morningstar Saga) Z A Recht
Patriots, James Wesley Rawles ( A Brilliant piece of work)
Postman, (The) David Brin
Resurrection Day Brendan Dubois
Rift, (The) Walter J Williams
Savage Dawn, Robert Cole
Shiva Descending, Gregory Benford
Some will not die, Algis Budrys
Stand, (The) Stephen King
Survivors Terry Nation ( British Classic)
Survivors J W Rawles ( Rubbish bible thumping exercise)
Survivalist, (The) series Jerry Ahern
Third Pandemic, (The) Pierre Ouellette
This is the way the world ends, James Morrow
Thunder & Ashes (Morningstar Saga) Z A Recht
Virus, Japanese Author ( lost from my collection)
When the City stopped, Joan Phipson
Wild Shore ( The) Kim Stanley Robinson Deep stuff
World in Winter ( The) John Christopher
Year of the quiet sun, Wilson Tucker Suprisingly Good
48, James Herbert
8.4, Peter Hernon good read
28 Days Later, Alex Garland
299 Days the Preparation, Glen Tate ( My book of the year for 2014)
All good reading stuff for making your mind more accessible to the possibilities and permutations
Most of these books are very thought provoking and make you think about some issues you otherwise mare have overlooked.