UK for sure as it maintains a lot more jobs. Obviously some firms will go , but a lot will remain and they will still have their employees due to the furlough. Not to mention the UKs programme is more per month for most as far as i know. Both of these increase spending in the economy and will allow the UK economy to get back on its feet faster, as people can go straight back to work rather than look for a job for months. There are downsides though, like the high taxation in the coming years due to the serious amount of borrowing , which will obviously hold back growth a fair bit.