Best trading platforms...

Hi all,

What are your favourite trading platforms and why? Will split it in to a few categories to make it more interesting.

1. Best overall broker
2. Best desktop experience
3. Best mobile app experience

I'm gonna go with a clean sweep for Trading 212 although admittedly they are the only one I have used, hence this thread...looking for compelling reasons to try something else.

IG platform works for me.
+Real time prices
+ £3 a trade
+ well laid out
- Takes a few days for dividends to be paid into account
Their app is good too very easy to use.