Is it just me or are unique weapons not as cool due to the aspect of weapon modding on normal guns which can easily overpower it's unique counterpart. For instance the Gobi Campaign Sniper Rifle is an amazing weapon. But once the sniper rifle has the suppressor you're practically getting free XP. plus the carbon fiber mod makes the sniper weigh less than the gobi. (by a half pound i know but still). What do you think. Are the unique the best way to go? Or do you mod and save time?
The uniques often have other features (and drawbacks) that the modded standard weapons don't have. The Gobi Rifle, for example, when compared to the fully modded base Sniper Rifle, uses 5 fewer action points per shot and has twice the health, meaning you'll repair it quite a bit less. OTOH, you'll do slightly less damage per shot with the Gobi. The Ratslayer does 5 points more damage per shot, has five times the critical hit chance that the modded Varmint Rifle has, and also has more health. The downside is that it takes more than twice as many action points per shot to use the Ratslayer than it does the modded Varmint Rifle.
It really comes down to personal choice. Me, I take the Ratslayer every time - the AP cost is not an issue since I almost never use VATS, and the 5X critical multiplier makes it a monster against the lesser enemies. Same with the Gobi - the damage hit is minor compared to the unique's other advantages.
WRT the Sniper Rifle mods, the carbon fiber parts mod was bugged at one time. It would show the weight reduction when you looked at the weapon stats on your Pip Boy, but your actual weight of items carried still showed the eight pound hit of the unmodded rifle. I don't know if that's been fixed in one of the patches or not.