Like Sculpin said both are good, both having access to inshore protected waters as well as fishing offshore on the banks. That being said, there are now quite a few more restrictions on the inshore waters around Tofino than there are in Barkley Sound on the Ukee end. Tofino has a few nicer restaurants and shops (i.e. if non-fishers in the group) but accomodations can be significantly more expenses as Tofino's a lot more popular tourist destination, particularly in the summer. On the topic of accommodations, there's a big difference between June and July in both towns for price and availability. If you are looking for July, your options are likely a lot more limited planning this late in the year and July is peak time (I book the house I stay in for my June and July fishing trips a year in advance). Can't speak for Tofino as June may be considered part of peak season rate-wise there but many places in Ukee don't consider June the high season so it's an affordable month. Availability off moorage in July is also more limited, lots of availability in June but in July I'd suggest you call ASAP for either end.
If you choose Ukee, make sure to head to Pioneer Boat Works to buy some bait or tackle and take a look at the chart they have marked with all the offshore bank locations. They'll also have fairly good info on where the bite is happening both inshore and offshore but for up to the minute info best to hit the docks and cleaning tables with a six-pack. A shared cold beer always results in the best shared info! Not sure about suggestions for hiring a guide that will go out on your boat but the fishing on the banks is not that complicated - spoons 4-5 feet behind a flasher or various green/glow octopus or needlefish hootchies 30-40" back one side down in the mud so you hit bottom every now and then the other in the mud too or in the water column depending on bait and fish marks on the sounder. Spoon and hootchie size is "match the hatch" - ask around what size bait is predominant or clean your first fish right away to see. Two-years ago the needlefish in June were huge so we were stacking two needlefish hootchies. Lst year they were predominantly small, so one was fine. Inside you're dealing with a lot of rock and some specific locations at times so that may be the best investment in a guide.
Salmon University website has a bunch of pretty good info on fishing Barkley Sound and charts w/ trolling tacks outlined for the most popular spots.
Good luck, I'm sure you'll love the west coast as catching fish is just a bonus to the beautiful scenery and all the wildlife out there!
UkeeDreamin