what to carry

[Talon]

Well this thought really keeps me up at night,exactly what to carry if we hit the shtf scenario.I have two 12 gauge greener gp's.I picked the greener as it's as tough as nails (not to mention it has a touch of zulu about it).
I also have a 20 gauge and my crossbow.
All of them could be classed as my primary carry due to the weight of them.
I love the crossbow as it's comparitively silent and the ability to craft my own ammo is very important.
I like the 20 gauge as i can carry more ammunition in 20 as i can for the 12 and it's just as effective. 12 gauge though is extremely common in the uk,so the chances of comming across a restock supply is much higher for the 12 compared to the 20.

So my question is what is the best to carry,i have a van but i plan on bugging in as im basically in the sticks and i feel it would be safer to stay put and see how things progress.
If i did have to bug out on foot though i could only carry 1 primary distance weapon as i would have food/water and other essentials,im an amateur prepper so im interested in the opinions of people with more experience on which to carry as i really can't decide on the best option.