Is it correct to say that with UKRS (or BRTrains, i don't even remember) the Pendolino (correct me if i'm wrong) has 3rd rail power ?
Notice, it's quite useful when you want to put metros too.
The Pendolino doesn't have 3rd Rail Power in UKRS, however, both the Hitachi A-Train and Eurostars in UKRS are the express trains that do have both OHLE and 3rd Rail power. Though both are limited to a lower speed on 3rd Rail. Away from those, the 313s and Electrostars in UKRS are also Dual Mode, but these are commuter units, whilst the Electrostars could perhaps be classed as Intercity on some of the routes they operate.
As for the topic's question, I mostly use a combination of trains and busses/coaches. My current game is a modern-day German-based/style game, and I've start several companies that "compete" with and also complement one another, much like what would happen IRL. For example, I might have a bus company that does feeder services to a main station, but said company might also run a long distance coach that competes with the train as well.
Ships are my lowest priority, and generally get used for moving Oil from the Rigs, though I do have a couple that are used to to cross bays where the journey by land transportation would be longer for Passengers (using the FISH Hydrofoils).
I do also use Aircraft, Heli's are only used to serve Oil Rigs, much like the majority IRL, and then there are Airplanes for longer distance travel, but even these are competing with the train and coaches.
I nearly forgot, I do have 1000, if not more, trucks. These have kinda been left for the last year (IRL year), and are mostly there to add a bit of variety to the roads away from busses/coaches.