I have never been able to get the Old Rip on a regular bases, so my daily pour of late has been the Weller Antique. I did buy a bottle of the WL Weller Special Reserve for some bourbon marinade because it was a bit cheaper than the Antique; and naturally poured a dab in the cook too. I found it to be a very pleasant drink, perhaps a bit sweeter with a little more vanilla than the Antique and went great with the Cuban Cohiba maduro I smoked while the roast was marinading.
I'll take any current Weller over OF, I found OFBIB to be very bland and had to use it as a mixer to finish it.
After reading this thread, I'm enjoying a 1:1 vatting of OWA107 and W12. Very nice pour. OWA tends to be too hot for me sometimes and W12 is nice, but low proof. Vatting these gives me near that 100 proof sweet spot and comes out very balanced and sweet.
I've had most of what's available and I really like OWSR for a regular pour. A friend of mine brought a bottle over and apologized because he knows I'm a bourbon snob, but he was happy to see how much I enjoy it. It is just a smooth pour every time. It gets extra points in my book for being relatively inexpensive and easy to find. I haven't opened my Weller 12 yet, and I imagine I'll enjoy that even more.
I find I don't like the ORVW 10/107 as much as the Weller and certainly no where near as much as Pappy 15 (all three are open on my bar, plus BTAC WLW). Don't get me wrong, I LIKE it, but hear me out: If it is a special occassion, I go for the Pappy 15. If it is just a nice drink I go for the Weller. The ORVW fits in there somewhere in between, but I just don't reach for it as frequently.
That said, I'm not as fond of the high proof whiskeys some members here prefer. I do tend to cut them down between 90-100 pf.
You asked about complexity. OWA to me is more complex, coming close to a standard rye whiskey on the "burn". But the flavors in 12 are a little more balanced.
I reach for the Weller 12 more than the OWA though, just my preference.
Maybe I'm crazy but I don't like the Weller 12 that much. I think the reserve is pretty good, so I was excited about the 12 and when I finally had some I was disappointed. To me it's showing too much wood. I'll have to revisit it now that it's been open a good while. My order of preference: