Got both creams in my last haul, but have only tried the Jermyn so far. I like the scent of both but Jermyn is my favorite (more modern scent) and i'm considering getting the aftershave balm. I believe both brands have stood the test of time when it comes to performance
I'm a huge Windsor fan. I do enjoy TOBS scent but it makes my face red. Dr Harris have no such problems for me and I find the performance a notch or two above as well.
Got the Windsor cream, aftershave, and deodorant awhile back and really like it. Got a puck of Marlborough soap recently but haven't tried it yet. I know Kevin @HolyRollah is a fan so he could give you the skinny. I've only had a sample of the TOBS Jermyn St and it's been awhile since I used it so I can't really speak to it.
The only TOBS I have used is a lavender shave cream—which was a decent cream. But I'm more of a shave SOAP guy. I obviously need to get a puck of the TOBS! (incidentally, shouldn't 'Taylor of Old Bond Street' be referred to as "TOOBS" in place of "TOBS"... The DR Harris Marlborough soap? Top lather. DRHM lathers quickly without too much effort, offer good glide and without drying out the skin afterwards; 'manly' scent, and not overpowering; a nice looking bowl as well. The aftershave is the perfect compliment.