Given 2 x BGP routers dual-homed to 2 x different ISPs running in active/standby. Should I be getting the full internet routes from the ISPs or not?
I guess in my configuration the 'default routes' should be more then enough compared with 'full internet routes'.
I thought I heard that I should be running 'full internet routes' only if you're transit AS.
What do you think?
If you are running active/passive then default routes are sufficient.
However it's not true to say that full internet routes are only used if you're a transit AS. If you wished to use both of your links then you could get full internet routes from two different ISPs and BGP would prefer one ISP for some traffic and the other for ISP for other traffic.
Of course you don't want to be a transit AS betwen the ISPs so you would also use a filter list outbound.