The issue with Veleska's Watch is that you have to make your way through level 16 red Templars to get there when you are a level 10 or 11 which is rough. A lot of the HW enemies can be easily avoided since it is so wide open - you can see the Venatori and Templars and skirt around them. You can take on one level 16 Wyvern and not get entirely murderized. EdL is the opposite. I'm not saying it is impossible since lots of people do it, but it is more of a pain in the arse if you aren't in the mood for a fight and you just want to ninja in to get the goods. In the HW, I can usually make my way over to the camp by the canyon, establish it and then visit Betyar w/o running into any enemies. You can also make your way into some of the tombs of Fariel w/minimal enemy fights, too.
I love Valeska's watch... but if I go there before I'm ready (usually around level 14), the hurlock alphas absolutely maul me, and you really have to close at least one Fade rift before you can reach it. But hey, it's also really close to the little hollow where you pick up the Sulevin Blade quest, so two birds, one stone.
All good points. Pain in the arse? I get that, but I actually enjoy fighting my way up the traditional path to Drakon's Point camp, close the two rifts, clear the darkspawn and then go farming. Fighting all those enemies makes up for some of the tedium of farming, I guess.
But if you want a ninja option, it is possible to get to Veleska's Watch with almost no fighting, mostly by just running past the enemy encampments, similar to HW. It's not necessary to close either of the rifts near Drakon's point, either. Both can be snuck (sneaked?) past. I've done all of the above. Going solo as a mage with Fade Step helped alot. A rogue with Stealth could probably also pull it off, but I haven't tried that. With a good mount you could also ride past all but the tunnel section.
Capturing the Drakon's Point camp is required, however, since you need the little bridges to get to Veleska's. That's why I said "almost" and "mostly".
Once you farm and gear up to T3, the rest of the bad guys are still there for you to go back and wipe out.
Just for the sake of fun facts, not as a recommendation for normal play, it is possible to go straight from the starting point in EdL to capping the flag in Suledin keep without fighting a single enemy, using speedrun glitches. Video below, starts at 2:19:00 (out of a 3:43:54 completion of the main quest on nightmare). 2:22:40 is the first glitch. Flag capped at 2:28, so only 9 minutes to "clear" EpL.
https://youtu.be/XUZ9OOF9KYw?t=2h19m
But that's not exactly pain free -- I've tried some of those jumps and clips and they can be very frustrating.