Long....sorry. And its not personal.
First, there are way more Triumphs out there than Sonetts(SP?). And - as we so often point out here - beauty is in the eye of the beholder. To me, a Sonett will always be ugly.
You can make any Triumph in to a car you WANT to drive. Even the Spitfire. It takes some work - but parts are relatively inexpensive. And support for the marque is great. Yes they have some electrical issues - but the cars are so simple, its usually very easy to find the problem.
I put 60K on my Spitfire and it only left me stranded once - and it was my fault as I forgot to grease a joint on the front wheel. Mistake made once.
I had a ratty TR6, that had upgraded suspension, but the PO had ignored all else. It was fun to drive and fairly reliable. Rust, though, saw this car move on.
My TR8, the Wedge, is hugely unpopular. However, its more comfortable to take on cruising trips than my Spit or TR6 ever was. Add to the fact that it has a warmed over Rover V8 doesnt hurt (TR7's had 4's, 8's had 8's). Also helps that it handles like its on rails.
Interestingly enough the Saab 99 engine was derived directly from the TR7 slant 4.
Long story short: you don't need to like the British cars - it leaves more for those of us who do.